2 names, both loved by my husband and I. [name_m]Augustine[/name_m] would be called [name_u]Gus[/name_u] or just [name_m]Augustine[/name_m] and [name_m]Alistair[/name_m] will most likely not have a nickname. Which one do you Berries prefer?
[name_m]Augustine[/name_m], by far! A sweet little chubby toddler running around seems more like a [name_u]Gus[/name_u] than an [name_m]Alistair[/name_m] to me! Plus he can use [name_m]Augustine[/name_m] as he ages. It’s a very handsome and solid name.
I think [name_m]Augustine[/name_m] sounds more modern, but I prefer [name_m]Alistair[/name_m] personally. I think it sounds professional and handsome.
I personally prefer [name_m]Alistair[/name_m]. If [name_m]Augustine[/name_m] is used, I wouldn’t use a nickname. That’s just me - I like the unique factor of both of them, without nicknames. Using ‘[name_u]Gus[/name_u]’ as a nickname for [name_m]Augustine[/name_m] ruins that factor for me.
[name_u]Love[/name_u] [name_m]Alistair[/name_m] and all the other spellings
[name_m]Augustine[/name_m] is perfect! It goes very well with his siblings [name_f]Charlize[/name_f] & [name_f]Clothilde[/name_f]. (allllll great names!!)
[name_m]Alistair[/name_m] is my no. 1 so I throw my vote in for that!
[name_m]Augustine[/name_m] nn [name_u]Gus[/name_u] gets my vote
I’m not a fan of [name_m]Augustine[/name_m], even with the nickname [name_u]Gus[/name_u], but I like [name_m]Alistair[/name_m].
I really like both, but I think [name_m]Augustine[/name_m] is especially handsome. I also think it’s a better fit with your elder daughters’ romantic names.
I like [name_m]Alistair[/name_m] and [name_m]Augustin[/name_m] without the -e, because [name_m]Augustine[/name_m] is a girl name (that’s how it works with latin names finishing in -in(e)). If I read [name_f]Charlize[/name_f], [name_f]Clothilde[/name_f] and [name_m]Augustine[/name_m], I would assume they are 3 girls!
[name_m]Augustin[/name_m] and [name_m]Alistair[/name_m] are great! Nice sibset!
I like [name_m]Alistair[/name_m]
I love [name_m]Alistair[/name_m], it’s quite a versatile name - I can see it on a toddler and a man, and both someone who works in a bank and an artist.
I do like [name_m]Alistair[/name_m], but I like [name_m]Augustine[/name_m] even more! I love the connections, the sound, and the potential nicknames :).
[name_m]Alistair[/name_m] most definitely. [name_m]Augustine[/name_m] looks like an outdated female name to me.
Not true - [name_m]Saint[/name_m] [name_m]Augustine[/name_m] was a man.
It is true though… 
Americans made him be a man with this spelling. They added an -e to a lot of masculine latin names and it was actually linguistically, etymologically and historically not correct. If an [name_m]Augustine[/name_m] goes to [name_f]France[/name_f], Spain, [name_f]Italy[/name_f] or other countries related to the Latin language (that are now Romance languages), EVERYBODY would think he is a girl.
Examples of Latin names:
[name_m]Colin[/name_m] (boy) - [name_f]Coline[/name_f] (girl)
[name_m]Valentin[/name_m] (boy) - [name_u]Valentine[/name_u] (girl)
[name_m]Florin[/name_m] (boy) - [name_f]Florine[/name_f] (girl)
[name_m]Paulin[/name_m] (boy) - [name_f]Pauline[/name_f] (girl)
[name_m]Justin[/name_m] (boy) - [name_f]Justine[/name_f] (girl)
[name_m]Constantin[/name_m] (boy) - [name_u]Constantine[/name_u] (girl)
Faustin (boy) - [name_f]Faustine[/name_f] (girl)
You can look for the statistics in [name_f]France[/name_f] for example, you will not find boys named [name_m]Augustine[/name_m], [name_u]Constantine[/name_u], [name_f]Pauline[/name_f] or [name_f]Justine[/name_f].
Sure. But as the OP gave no indication of wanting a name that translates perfectly across all cultures and languages, it seems a bit harsh to assert that [name_m]Augustine[/name_m] is only a girl’s name, as you initially did. Regardless of the linguistic etymology, [name_m]Augustine[/name_m], like [name_u]Constantine[/name_u] or [name_u]Valentine[/name_u], is accepted as a male name in the English-speaking world, which the OP presumably inhabits.
Also, while Americans can be blamed for a great many things, I think you will find the standard English spelling “[name_m]Augustine[/name_m]” (male) dates back to the Middle Ages in [name_f]England[/name_f]. 
[name_u]Antoine[/name_u] is a male [name_m]French[/name_m] name, [name_f]Antoinette[/name_f] being the female version. Another example is [name_u]Constantine[/name_u]. Taking the “-e” off completely changes the pronunciation and would make it almost unrecognizable as “[name_m]Constantin[/name_m]”. The female form of [name_u]Constantine[/name_u] is [name_f]Constance[/name_f]. [name_m]Just[/name_m] because a name ends in an “-ine” does not mean it’s a feminine name.