Rogue + Shadow Priest 2v2

[Tal]

And Delc, it's not gamebreaking. It is however a completely massive advantage -- and one that makes absolutely no sense.

Wait. You're saying a big beefy man-cow (or woman-cow) with 5% more health than other races makes no sense?

When it comes to racial abilities folks get their knickers bound up around the funniest things.

Bloodelves and their arcane torrent
Draenai +1% to hit (spell/melee)
Dwarves and their stoneform (and oddly enough at beta end treasure finding)
Gnomes and escape artist
Humans with perception and diplomacy
Nightelves with shadowmeld and dodge
Orcs with bloodfury and stun resistance
Tauren with 5% to stamina and warstomp
Trolls with...well...uh...I guess someone might complain about berserking but I haven't seen it yet...
Undead with will of the forsaken

Thing is that none of them give a completely massive advantage in any area of the game. You have a tank with a bit more life than the others or one who can throw off fear. Big deal - very few bosses hit SO hard that 1k life is going to make or break an encounter totally.