What are your top choices why a warlock should be a certain race and why. Oh and also this relates to PVP ONLY, I don't really PVE much so anything that helps with PVE, you don't need to include. Personally, I think Orc would be the best for the Horde because of the extra spell power and stun resist, then BE for the silent, then Undead (because of the WOTF nerf). For the alliance side I think the Gnomes racial would serve the best because of Escape Artist, and then humans. Give your your sides of the story, experiences and anything else you would like to add.
Thanks for looking!