I've been using a warrior to tank, it's not too bad once he's geared enough. As others have mentioned, I do miss not having blessings.
My warrior tanks with 3 keys:
- One taunt
- One shield bash to interrupt spells
- One castrandom (devastate, shockwave, shield slam, thunderclap)
He holds aggro well and I've had few problems with him. My one main complaint is that he doesn't have a constant aoe pulse like a DK or paladin, which makes instances that have adds run past him a serious pain when thunderclap is on cooldown (like violet hold).
Overall I've done pretty well with my warrior.
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