I hope dawnguard likes big fluffy monsters that eat vampires, because this werewolfs a bat hunter! But Ill play as a vampire on my side account (Getting my moneys worth)

I honestly couldn't say. Both Sides are interesting, and altough vampires appear to have the better additional benefits, i like crossbows. It will probably come down to which side appeals to me more as far as motives.

Both, because I run two main characters, a male Nord warrior (who is a werewolf), and a female Dunmer thief/assassin (who is a vampire). They are almost tailor-made for this DLC.

I think I'll join the Vampires. I'll use my fav Character, a female Imperial Archery-type assassin. c:

im leaning more towards Dawnguards. After what Todd said at E3, im getting the impression only the dawnguards can craft dragonbone weapons and such, plus an armored troll ain't bad either. i'll choose when i get to play it.

I've got two characters. One for each of ya...

Yeah I think I will choose vampire lord BUT IGN said that Dawnguards will be able to summon armored trolls which to me is a pretty cool ability and a picture I saw on gaming blend showed a dawnguard using something that look like holy magic so there might be more to the dawnguard than we know. and besides they would have to balance the characters out somehow.