I have always played mage since the very end of TBC when I was just leveling. Raided through wrath somewhat casually, then raided pretty hardcore through cataclysm, then my guild broke up, so I don't raid anymore. I play alliance, so my mage was a draenei, then I switched to Worgen in Cata. Having 1% crit is really nice especially on a mage. So with that, I know Worgen is probably the best dps race on alliance side for casters.
I wanted to try out warlock next expansion, so I'm going to level one, and play him through lfrs, flex, and pugs to get acquainted, and be ready for next expac. So I do not want another worgen, I have the mage, and a druid, and I don't particularly love watching them huddle around. So my question is, do I need to play gnome? Does their racial really outweigh picking something like human or dwarf?
I also heard just to pick for looks because all the racials are being re-balanced, so it won't matter down the line. I don't know if this is true or not, but I would like if I could play a human mage.