I posted a poll a while back on this, but am going to start fresh with some new considerations.
We’ve almost settled on the name [name_u]Seth[/name_u] for our baby-to-be. We love that it’s short and sweet, classic without being very common, works well across ages, and it has personal significance for us.
For a middle name I’d ideally like a 3-syllable nature-inspired name - so far [name_u]Everett[/name_u] is the only one that sort of meets that criteria.
Our last name is Wheatman and we’re planning on using my last name, Marleau (pronounced with an “o” sound at the end) as another middle name – but not with the intention of it getting used that often.
I really love [name_u]Seth[/name_u] too, for all the reasons you described. I think from your choices, I would choose [name_m]Radley[/name_m].
In my experience, [name_u]Rowan[/name_u] has been taken over by girls.
Other ideas that may or may not fit your qualifications:
Are you set on using two middle names? Because I think [name_u]Seth[/name_u] Marleau Wheatman sounds fantastic! You have the good fortune of a nice last name to use in the middle. I gave my kid my last name as a second middle even though it doesn’t sound nearly as nice (but it never gets used day-to-day, it’s just there, officially).
If you do want to add another middle name, [name_u]Rowan[/name_u] and [name_u]Everett[/name_u] are my favorites from your list.
I didn’t think of [name_u]Seth[/name_u] [name_m]Rogan[/name_m] when I read [name_u]Seth[/name_u] [name_u]Rowan[/name_u], though I think there was something familiar about the [name_u]Seth[/name_u] [name_f]Ro[/name_f]–an sound to me that probably came from having heard the actor’s name before. But it flows very nicely. You could consider [name_m]Roland[/name_m] as an alternative to make it less similar and change the “n” ending, but I don’t think you need to.
I think [name_u]Seth[/name_u] [name_u]Rowan[/name_u] Marleau Wheatman all together makes the nicest combo because I like the repeating “o” sounds between the two middle names.
I think [name_u]Seth[/name_u] [name_u]Everett[/name_u] flows fine, and I’d encourage you to use it if it’s your favorite (by virtue of meeting the criteria of 3-syllable and nature-related–you could also use [name_u]Everest[/name_u] if you really want to highlight the nature connection).
[name_m]Radley[/name_m] is not my style, and [name_m]Bjorn[/name_m] doesn’t seem to go as well with the other names (though I don’t think it’s unusable with them, it just wouldn’t be my choice).
[name_u]Love[/name_u] the name [name_u]Seth[/name_u], by the way!
Any other suggestions for 3 syllable nature-inspired middle names to go with [name_u]Seth[/name_u]? [name_f]Babe[/name_f]'s due any day now and we’re still not settled on a middle name!