Post 'em.
I run a Nath deck that is pretty fun, but honestly I could be in Mono-Green and the deck would barely change. If you want to be a little more combo heavy, Momir Vig is actually a really good option. Actually, I have seen a lot of elf commanders so I can just do the rundown for you:
Dwynen: Meh. She's not bad. but generic lords are actually not that amazing as commanders.
Eladamri: Also meh. The problem with him is that he shuts down a lot of your own cards. If he gave them hexproof he would be absurd.
Ezuri 1.0: The best Mono-Green elf commander, I personally don't like him as without the surprise factor he actually struggles to be cast and then live until your boardstate is finished, so he is basically a 9 mana overrun you can cast at your pleasure than a commander.
Kaysa: The best elf commander if we are in 1995.
Rhys the Exiled: this is a great commander if you want to splash black but you really want your deck to be 80-90% green.
Yeva: Not that popular as the commander, elves aren't exactly the kind of thing you want to be popping out at the ends of your opponents turns.
Edric: Actually good, but you are better off just running a non-tribal deck with him.
Ezuri 2.0: Pretty good, but remember that your lords can shut him down.
Momir Vig: Good and fun but the elves should be a subtheme, not the priority.
Nath: My commander, if you build him be warned: you will play him, it will table once, then when his ability triggers and the opponent tries to discard a card, you will tell him its at random, he will reread the card, and Nath will never survive to your next upkeep again. Having said that, he is really fun and you can either make him a discard commander or an elf commander that uses discard spells to make tokens. Also, Sadistic Hypnotist.
Rhys the Redeemed: Good, but much, much better as a tokens general than an elf tokens general.
Sevala: Fine for group hug but there are surprisingly few good white elves.
