Please feel free to do this however you want. Love, like, lose or ranking them or whatever else!
Ambrose
Wilfred
Francis
Arden
Douglas
Walter
Ernest
Percy
Alistair
Benedict
Orson
Edmund
Aubrey
Clement
Augustus
Evander
Isidore
Thank you!
[name_u]Love[/name_u]: [name_u]Arden[/name_u] (Love seeing this for a boy!), [name_m]Ernest[/name_m], [name_u]Percy[/name_u], [name_m]Alistair[/name_m], [name_m]Orson[/name_m], [name_m]Edmund[/name_m], [name_u]Aubrey[/name_u] (Yes to [name_u]Aubrey[/name_u] for a boy!), [name_m]Clement[/name_m], [name_m]Isidore[/name_m]
Like: [name_m]Wilfred[/name_m], [name_m]Ambrose[/name_m], [name_u]Walter[/name_u], [name_u]Francis[/name_u], [name_m]Benedict[/name_m], [name_m]Augustus[/name_m], [name_m]Evander[/name_m]
Lose: [name_u]Douglas[/name_u] (Just not my cup of tea, but I love the cozy imagery)
I really like [name_u]Arden[/name_u], [name_m]Isidore[/name_m], [name_m]Augustus[/name_m] and [name_m]Evander[/name_m]. [name_u]Aubrey[/name_u] is nice to see on a boys list for once, also! [name_f]My[/name_f] favourite would be [name_m]Evander[/name_m].
I am not a fan of [name_m]Wilfred[/name_m], [name_u]Walter[/name_u], [name_m]Ernest[/name_m], [name_m]Benedict[/name_m], [name_m]Edmund[/name_m] and [name_m]Clement[/name_m]. They are just NMS. I would lose [name_m]Benedict[/name_m], [name_m]Ernest[/name_m] and [name_m]Clement[/name_m] from those.
[name_u]Love[/name_u]: Arden,Alistair,Edmund,Aubrey,Evander
Like: Percy,Ambrose,Augustus,Clement,Benedict,Orson,Douglas,Isidore,Wilfred
Lose: Francis,Walter,Ernest
[name_m]Hi[/name_m] there.
Here are my thoughts-
Ambrose-I donāt mind it. I canāt quite get into it, but I find it interesting & old fashioned. I do love the idea of [name_m]Ambrose[/name_m] nn [name_m]Abe[/name_m].
Wilfred-I like [name_u]William[/name_u] & Fred(eric), but [name_m]Wilfred[/name_m] sounds too stuffy for whatever reason. [name_f]Do[/name_f] love the nns [name_m]Fred[/name_m] & [name_u]Freddie[/name_u].
Francis-I donāt mind this. [name_f]My[/name_f] dh loves this name, & finds it super masculine. Which I find weird, since itās unisex in my opinion & I prefer it for a girl spelled [name_f]Frances[/name_f].
Arden-I think that this is used way more for girls, but it sounds boyish to me. I donāt think that the sound is particularly interesting though. I love love the nn [name_u]Ari[/name_u].
Douglas-Itās refreshing these days, but maybe a little bit dated. Doesnāt do much for me, but not a bad name. I donāt really like [name_m]Doug[/name_m] though. It just sounds a little frumpy. A bit of a stretch, but I love the idea of [name_u]Douglas[/name_u] nn [name_m]Lad[/name_m].
Walter-This is cute. Kind of a good classic sweet old man name. I like it more in theory than the sound, but a fun choice either way. I actually know a nine year old boy named Walter/Walt, & still have a hard time believing itās his name sometimes!
Ernest-Another one that I like in theory more than actually saying it out loud. [name_u]An[/name_u] interesting vintage choice none the less.
Percy-I want to like this, but find it a bit too cutesy. Better as a nn for [name_m]Percival[/name_m], which is fine but kind of snooty.
Alistair-I like this a lot. Itās smart & handsome & charming. And this is my favorite spelling. Somebody on these boards had mentioned [name_m]Alistair[/name_m] nn [name_m]Alec[/name_m]. I love that idea!
Benedict-I love Ben(jamin), but [name_m]Benedict[/name_m] sounds too stuffy. There was a little toddler [name_m]Benedict[/name_m] at the doctorās office the other day, & it just didnāt seem to fit.
Orson-Itās not bad. I prefer [name_m]Oren[/name_m], but thatās because I love Hebrew names! Kind of strongly associated w/Orson [name_m]Wells[/name_m]. Which isnāt necessarily good or bad.
Edmund-I prefer [name_m]Edgar[/name_m], [name_m]Edwin[/name_m] or [name_u]Edward[/name_u]. [name_m]Edmund[/name_m] sounds the stuffiest of the āEdā names.
Aubrey-Definitely better for a boy, but so trendy for girls.
Clement-I should like it since I adore [name_f]Clementine[/name_f] for a girl, but itās not my cup of tea. It sounds kind of a abrupt. Cool unique choice though.
Augustus-I prefer just [name_u]August[/name_u], but this is handsome. Lots of good nn options too.
Evander-I donāt mind it, but just donāt like the sound much.
Isidore-I think that itās a interesting choice, but maybe just a little clunky.
I think in conclusion, your names are a little too old man-ish for me, but I really appreciate them if that makes sense! [name_f]Hope[/name_f] this helps. 
Iāll rate them out of ten and give a few comments 
Ambrose -7 -this has a regal and distinct sound
Wilfred -7 -i enjoy the sort of rugged sound -Wilf is so cute too
Francis -6
Arden-6
Douglas -6
Walter-6
Ernest-7
Percy -10 -literary, charming and lovely
Alistair -8 -handsome and full of rugged flair
Benedict - 7 -beautiful meaning and sound
Orson - 7 -love the meaning
Edmund -6
Aubrey-8 -I love this for a boy
Clement-6
Augustus-7 - quite charming and cool
Evander-10 -so gorgeous and interesting
Isidore-10 - elegant and lovely
Favourites: [name_m]Augustus[/name_m], [name_m]Evander[/name_m], [name_m]Isidore[/name_m], [name_u]Percy[/name_u]
Least favourites: [name_m]Ambrose[/name_m], [name_m]Wilfred[/name_m], [name_m]Ernest[/name_m], [name_m]Edmund[/name_m]
[name_u]Love[/name_u]: [name_m]Benedict[/name_m], [name_m]Edmund[/name_m], [name_m]Evander[/name_m]
Like: [name_m]Ambrose[/name_m], [name_m]Wilfred[/name_m], [name_u]Francis[/name_u], [name_m]Ernest[/name_m], [name_u]Percy[/name_u], [name_m]Alistair[/name_m], [name_m]Augustus[/name_m]
Lose: [name_u]Arden[/name_u], [name_u]Douglas[/name_u], [name_u]Walter[/name_u], [name_m]Orson[/name_m], [name_u]Aubrey[/name_u], [name_m]Clement[/name_m], [name_m]Isidore[/name_m]
Like for me ~ [name_m]Wilfred[/name_m], [name_u]Arden[/name_u],
Like for other people ~ [name_m]Ambrose[/name_m], [name_u]Francis[/name_u], [name_m]Isidore[/name_m], [name_m]Benedict[/name_m], [name_m]Evander[/name_m], [name_m]Augustus[/name_m], [name_u]Douglas[/name_u], [name_m]Ernest[/name_m], [name_u]Walter[/name_u], [name_u]Percy[/name_u], [name_m]Orson[/name_m], [name_u]Aubrey[/name_u]
Lose ~ [name_m]Clement[/name_m], [name_m]Alistair[/name_m], [name_m]Edmund[/name_m]
All your names are classic and old though many are timeless.
[name_m]Ambrose[/name_m]: I think this is a lovely name for a boy
[name_m]Wilfred[/name_m]: I personally am not a fan of the name however there is nothing wrong with it.
[name_u]Francis[/name_u]: I love this name. The only issue I foresee is that it is typically a female name. This could possibly lead to bullying. But it is a lovely name. Maybe give a masculine middle name that he can switch to if wanted.
[name_u]Arden[/name_u]: not my taste but itās ok.
[name_u]Douglas[/name_u]: the nickname [name_m]Doug[/name_m] is so cute for a little boy!!! [name_u]Or[/name_u] [name_m]Dougie[/name_m]!
[name_u]Walter[/name_u]: a bit dated in my opinion but still usable
[name_m]Ernest[/name_m]: same as [name_u]Walter[/name_u]
[name_u]Percy[/name_u]: same as [name_u]Walter[/name_u] ab [name_m]Ernest[/name_m]- a bit dated.
[name_m]Alastair[/name_m]: I absolutely love this name. It is on my list and I think it is classy and adorable.
[name_m]Benedict[/name_m]: very classy. I like that he could always shorten to [name_m]Ben[/name_m] if he thought the name was too over the top. I like this name very much.
[name_m]Orson[/name_m]: sounds too much like a 90 yo man for me sorry.
[name_m]Edmund[/name_m]: I donāt know why but I really donāt like this name. I like [name_u]Edward[/name_u] but the āmundā I just donāt like.
[name_u]Aubrey[/name_u]: Same comment as [name_u]Francis[/name_u]. But I do like the name
[name_m]Clement[/name_m]: I love love love this name. From your list it is my favourite. I think the nicknames [name_u]Clem[/name_u] or [name_u]Clemmie[/name_u] are adorable. This is one which I plan to use for a future son.
[name_m]Augustus[/name_m]: I love [name_u]August[/name_u] but [name_m]Augustus[/name_m] just seems a bit too much. Nickname [name_m]Auggie[/name_m] is adorable!
[name_m]Evander[/name_m]: I like it
[name_m]Isidore[/name_m]: never heard of it before but I like it.
[name_u]Love[/name_u] - [name_u]Arden[/name_u] (love the way it sounds), [name_u]Walter[/name_u] (I think it is such a sweet name to bring back), [name_m]Augustus[/name_m] (love the [name_m]Auggie[/name_m] or [name_u]Gus[/name_u] nickname options),
Like - [name_m]Ambrose[/name_m], [name_m]Wilfred[/name_m], [name_u]Francis[/name_u], [name_u]Douglas[/name_u], [name_m]Alistair[/name_m], [name_m]Benedict[/name_m], [name_m]Orson[/name_m], [name_m]Evander[/name_m],
Dislike - [name_m]Ernest[/name_m] (feels too old man to me), [name_u]Percy[/name_u] (I strictly think of [name_u]Percy[/name_u] Jackson), [name_m]Edmund[/name_m] (I just donāt like [name_m]Ed[/name_m] variation names), [name_u]Aubrey[/name_u] (I always picture this as a girl name), [name_m]Clement[/name_m] (not a fan of the sound of it), [name_m]Isidore[/name_m] (feels hard to pronounce and spell)
[name_u]Love[/name_u]:
[name_m]Edmund[/name_m]
[name_m]Alistair[/name_m]
[name_u]Arden[/name_u]
Like:
[name_u]Walter[/name_u]
[name_u]Aubrey[/name_u]
[name_m]Clement[/name_m]
[name_m]Evander[/name_m]
Neutral:
[name_m]Ambrose[/name_m]
[name_m]Wilfred[/name_m]
[name_u]Douglas[/name_u]
[name_m]Ernest[/name_m]
[name_m]Isidore[/name_m]
[name_u]Francis[/name_u]
[name_u]Percy[/name_u]
Lose:
[name_m]Benedict[/name_m]
[name_m]Orson[/name_m]
[name_m]Augustus[/name_m]
[name_u]Love[/name_u]: [name_m]Ambrose[/name_m], [name_u]Francis[/name_u], [name_m]Ernest[/name_m], [name_m]Alistair[/name_m], [name_m]Edmund[/name_m], [name_m]Augustus[/name_m]
Like: [name_m]Wilfred[/name_m], [name_u]Douglas[/name_u], [name_u]Walter[/name_u], [name_m]Benedict[/name_m], [name_m]Orson[/name_m], [name_u]Aubrey[/name_u], [name_m]Clement[/name_m], [name_m]Evander[/name_m], [name_m]Isidore[/name_m]
Lose: [name_u]Arden[/name_u], [name_u]Percy[/name_u]
Overall these names are wonderful!
such a lovely list!!!
[name_u]Love[/name_u]:
[name_m]Edmund[/name_m] - 10
[name_u]Percy[/name_u] - 10
[name_m]Augustus[/name_m] - 9.5
[name_m]Ambrose[/name_m] - 9
[name_m]Evander[/name_m] - 9
[name_m]Isidore[/name_m] - 8 (prefer [name_m]Isadore[/name_m], which would be a 10!)
[name_m]Wilfred[/name_m] - 8
[name_m]Alistair[/name_m] - 8
[name_u]Arden[/name_u] - 8
[name_m]Orson[/name_m] - 7.5
[name_m]Ernest[/name_m] - 7.5
Like:
[name_u]Francis[/name_u] (but only for nn Frankie!) - 6.5
[name_u]Walter[/name_u] - 6
Lose:
[name_u]Douglas[/name_u] - 4.5 (I dont mind this, just not my style!)
[name_m]Benedict[/name_m] - 2 (I prefer other āBenā names, [name_m]Benedict[/name_m] reminds me of eggs!)
[name_u]Aubrey[/name_u] - 2 (I love more āfeminineā names on boys, but Iām just not a fan of [name_u]Aubrey[/name_u] on any gender!)
[name_m]Clement[/name_m] - 1 (love [name_f]Clementine[/name_f] though!)
Your list reminds me of my favorite list on British Baby Names: Upright Elegance - British Baby Names
Top 5:
Ambrose
Ernest
Edmund
Clement
Isidore
@cactusgram Oh that list is fab, thanks for sending it over, and for the top 5 which is pretty close to my top 5 out of these as well!
@regionlatbest thanks for the ordering and the comments, I appreciate it!
@Randomdude555 thank you. Iāve found Iām not rushing out the gate to defend [name_u]Percy[/name_u] so that might be one to drop.
@AmyVermeersch I love how many people are saying [name_m]Ernest[/name_m] is so old man. [name_f]My[/name_f] big worry about it is I know about four little Ernests and worry itās getting too popular!
@Hilary112 thanks for the comments! I keep getting recs for [name_u]August[/name_u] but not a fan. (My options would go [name_u]August[/name_u] < [name_u]Augustine[/name_u] < [name_m]Augustus[/name_m] but I think thatās probably opposite of most people) I struggle with saying [name_m]Auggie[/name_m] without sounding like Iām about to go āoggie oggie oggie, oi oi oiā so Iād probably stick to [name_u]Gus[/name_u].
@Greyblue thanks for the comments, nice to see how people see them 
@MichelleM some great comments there. From the ones I am not jumping to defend so much, I think I could drop [name_u]Francis[/name_u], [name_u]Percy[/name_u] and [name_m]Evander[/name_m] (though [name_m]Evander[/name_m] seems to be on most peopleās favourite lists out of these, cāest la vie)
Probably narrowed myself down to
[name_u]Love[/name_u]: [name_m]Wilfred[/name_m], [name_u]Douglas[/name_u], [name_m]Benedict[/name_m], [name_m]Edmund[/name_m], [name_m]Augustus[/name_m], [name_u]Arden[/name_u]
Like: [name_m]Ambrose[/name_m], [name_m]Ernest[/name_m], [name_m]Alistair[/name_m], [name_m]Orson[/name_m], [name_m]Clement[/name_m], [name_m]Isidore[/name_m]
Lose: [name_u]Francis[/name_u], [name_u]Walter[/name_u], [name_u]Percy[/name_u], [name_m]Evander[/name_m], [name_u]Aubrey[/name_u]
Which puts me in a better position for useable length lists, thanks everyone! [name_u]Aubrey[/name_u] was one of my all-time loves but itās just not giving me that sparkle at the moment and I didnāt rush to defend it in my head like some of the others 
love: arden, ernest, percy, benedict, clement, augustus, evander
like: ambrose, douglas, alistair, aubrey, isedore
lose: wilfred, francis, walter, orson, edmund
good luck!