Algernon, Evander, and Tiberias are my favorites listed. Also loving Bayard from your middle name options!. Vladimir does have a dark, sexy air to it.
I thought also of Ulysses, Odysseus, Lysander, Aragorn and Thorin for you. Sorry if you aren't an LOTR fan, but those 2 characters seem to fit your bill of fair. (:
--sorry, typing on an iPad that hates me right now.
From your first names I like: Ambrose, Auberon, Damon, Endymion, Evander, Gawain, Leonidas, Leopold, Lucius, Melchior, Odin, Rainier, and Romulus. (wow, I am surprise how many I like! I have a hard time with boys names usually!)
From the middles I like: Alaric, Antony, Dragan, Emrys, Hawthorn, Hector, Rowan, Rufus, Rupert, Sebastian, Vladmir, Wayland, and Wolfgang.
Since you like Lucius, I was going to suggest Lucian, but maybe that is too soft for your husband? I also like Lysander, Samson, Ronan, and Rhys for you.
I also like a pp's suggestion of Solomon.
My faves are:
3. Perseus - This one is really cool!
You know darling, I had to comment here - I almost died to see your boys, though I have to be short. I will post my favorites, firstly the ones that go best, than better,worse and worst with big sis(not the worst from your whole list but from my favorites).
#1 Algernon - you got me fully when you posted The Importance! Love love love the name and the reference. A-theme works excellently, I saw it done a lot. Aphrodite and Algernon, be my sweetest sibset dream or come true.
#2 Perseus - yeah, not cool but very cool indeed. My favorite Percy name, strong, masculine yet soo underused. And sexy, yes.
#3 Leonidas - I would say number 1 if it was Leonidas. The only Leo heard in Ukraine, so cool and classy here. You know, I would die for Greek boys if I lived a few thousands years ago ;) (Hello Hephaistion)
#4 Melchior - super handsome and romantic, dark-blue velvet night, stars and light...
#5 Rainier - I like the sound and even though it's not fully my thing, I love the connections behind it. Interesting, bright option.
#6 Casimir - cosy, warm and homey. Doesn't have the A-dite's full enigma but still pretty cool.
I also like Endymion, Leopold and Orion...Xerxes is a bit too out-there, like too much cream on the cake but it may go. Can I cry because your H vetoed Isidore? I love this one much. Did he nix Edmund?
Out of your middles I obviously like Thor, Hector and Vladimir, although they are all cute buttons. Also, second Ulysses suggestion and adding Uriah.
Orlando? Roland? Odysseus? Otfried? Othello?(?) Oleg?
Alrighty, coming out looking like baby Hugh? Yes, this I can work with! Haha. I'm going to make up categories if it's all the same to you. =]
Aphrodite's Top Ten: These are the name that I think sound the best or "go" well with Big Sissy's name.
Attila - Masculine & Red; And I will trust you that it can work, lol. I know you don't mind but same initials really bug me, so it's not my top choice lol.
**Endymion - Dreamy & Silvery Blue; I will always love it. This is the first boy's name I ever saw you talk about and I think Mio goes great with Roo.
Leonidas - Strong & Maroon; As much as I love Leopold, I think this is the Leo name that stands up better next to Miss Aphrodite.
*Lucius - White light & ice; I don't like Mr. Malfoy, but do prefer this now to Lucian. The meaning is great, I can admit it's a nice choice if I try.
*Melchior - Pure onyx sky glittering with starlight; What a gem! Husband has some very good taste (Wait wait wait, HUSBAND?!?) I think this is a perfect choice... Very captivating, mysterious, and unusual in a good way! And very high up on my preference list for this little one. Oh rambling...
Orion - You know how much I love him, but he barely made this list. As much as it pains me to say, I agree it's becoming trendy. Not sure anymore =(
Perseus - Same concern as Orion. The most accessable myth names and therefore the most popular, but you can pull off more impressive ones!
*Rainier - Lush & Green ; And strong and honoring. He is still a mighty contender in this race. No inherent nn, unless you'll call him Rain? Cute!
*Romulus - Awesome; I love wolves as well, so I'm not sure if I'm biased? But I think this is pretty great. "Cooler" than Remus. And I adore nn Rom!
Tiberius - Yellow & Macho; I can't deny it sounds amazing. Not my favorite, but I can see it working and your kid would be the one to pull it off.
The Top Five For Rosalind: These used to be some of my fave options for the old sibset, but now have lost a bit of their spark for me.
Casimir - Light blue; It's still a great name with a great meaning and probably my favorite on this list, but lately it's seemed a little less impressive.
Damon - Dark green; It's nice but it's not enough with Aphrodite. Short and semi-boring, and very unbalanced in my opinion.
Evander - Golden yellow; I think you're right about him blending in with the Anders. It's a great name, but it does have more of a common sound.
Gawain - Burnt orange; This has such a gentlemanly and perfect image, but my problem is with it's sound. Maybe move it to the middle spot??
Leopold - Light green; Also my favorite Leo-name, but as great as it is, he still seems a bit too much on the "safe side" in this sibset.
The Ten I'd Eliminate: As first names. Some of these work really well in the middle spots, but just aren't enough to hold their own.
Algernon - "Flowers For" is my first reference for this name. Aphrodite's little brother AL?? No way.
Ambrose - Points deducted for Rose petal softness and A initial. I'm not a fan of this Rose boy name unless it's in the middle. I mean... nn Bro?
Auberon - "King of the Faeries". Well, we think it's cool, but this is the only phrase I Ever see next to this name. 50/50 chance it's used for teasing.
Bensiabel - I think it's far too much in full form, far too close to 'Isabel' in spelling, and far too "normal" when he's inevitably shortened to Ben.
Darius - Pretty cool, I did pause to consider this when I first saw it, but like Damon, I just don't think it's enough.
Herne - I don't even view this as a rough name like you do, but he just works much better in the middle. One syllable first and last name... Nah.
Odin - Norwegian connection is really great, but I just don't see Odin and Aphro. I think he should be the first consideration as a middle name though!
Percival - I'm sorry I just dislike this, I think you already know that lol. Neither Percival nor Percy fits any of the imagery I can see for you.
Snowdon - Best left on the mountain. Sorry, this doesn't even seem like a name, and just reminds me of the vetoed "nature words" from the first try.
Xerxes - The meaning is awesome. But I'd even prefer you just named a son Hero as opposed to this. I think only worked on one dude...