I would say anything having to do with the Draenei. There are pleanty of better races for a caster class, Gnomes and even Bloodelves. I doubt the self-heal racial comes in handy all that often after a few levels.

Humans, unless they're a mage, pally, or warlock, also seem pretty worthless in PvP. Improved stealth detection only means you see your impending doom a few seconds eariler than all the other classes, and without an AoE there's nothing you can do to stop it. Come on human, kill me with your mighty rep gains. And human warrior for PvP? Why?

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