For the...

Hulk play both in past.  Hulk like Horde better.  Hulk started playing again recently.  Hulk roll Orc Warlock on Hyjal realm.  Hulk free trial run out in three days.  This make Hulk angry.

Horde, Undead Warlock.

I preferred alliance but played mostly horde because most my friends wanted to be horde.

I like the Alliance more.

When I played I had a bunch of Alliance characters, even though we were permanently getting owned in BG's.
I did reroll Horde on a different server after a while though.

Horde!!!

I have 4 horde characters, all level 70.  I retired two months ago too haha.

Alliance, though I would play Horde if any of my friends did.  Got a 70 Draeni Shaman.

For the Horde!

Horde always win.
I picked aliance though cuz most my RL friends use that

My main is a 70 troll mage but I do have a 70 gnome warlock which I made to play with a friend.

Horde > Alliance
kkthx

70 Undead Rogue on Archimonde

Horde because I like the Undead. They look kool. If i liked gnomes as much as undead I'd say alliance hehe.

I really don't have a preference, but I always seem to create Alliance dudes.
Undead look pretty kick ass though

I always play Undead even though I don't really care for either Horde or Alliance.

Horde, no contest.  Damn Alliance do-gooders and their cutesy toons.

This all may stem from being relentlessly hunted by them after entering Stranlethorn Vale for the first time.  Assholes.

Alliance, cause we keep our feet on the ground and do not forget the naaru.

Horde.  Undead 70 mage.

Depends on the server, but you can never go wrong with horde. Alliance is definitely more pve/raids while Horde is more pvp

Easily Horde

For the Alliance!  Death to the Horde!  Etc ;)

Alliance ! eots is ours :D

Alliance, just because I like their aesthetic a lot more than the Hordes'. Taurens are pretty cool looking though.

Horde!!

Horde.

Any real man would choose the burning legion

Horde! Trollish, Orcish and Taurenish.

Horde. Taurens just rock to hard I guess

For the Horde! Trolls are awesome =)

Well out of my 6 level 70's 4 are horde and 2 are alliance, so i'd say horde, im just a fan of the backstory and the artistic style of the horde races.

"Hulk play both in past.  Hulk like Horde better.  Hulk started playing again recently.  Hulk roll Orc Warlock on Hyjal realm.  Hulk free trial run out in three days.  This make Hulk angry."

Horde, me like orc, me big orc rogue, me dual-wield 2 sword, me very sneaky and like gank ally, orc big and lvl70, me big orc 2433 honor kill, ally not good for orc, once orc went to shadowmoon valley and got ganked by 3 ally, then orc found body and killed all 3 allys then orc laughed, orc have big illidian off-hand sword, FOR THE HORDE!!