lol-character...
Gnomes...gotta be the gnomes. Make a gnome, pick up engineering and make yourself a pair of goggles.
Back to serious stuff,
Each race has his/her/it's own advantages and disadvantages. Since, I'm mostly and alliance player, I'll be hardworking and list out briefly what each alliance race offers.
Dreanei - is very good because they have a racial that allows them to heal every 2 minutes and also a +1 chance to hit bonus to them and their group. +Jewelcrafting skill is nice to have but I wouldn't recommend it as your first profession.
Night elf - would have Shadowmeld which is great for ambushes in PvP and they also have +1% dodge racial bonus which helps.
Gnome - Escape artist...and +Engineering skill !!! Go get them goggles !!!
Human - Diplomacy is good in the end game where you need to grind reputation with factions. Expertise with swords and maces is wonderful to have and perception, useful in PvP but marginally useful in PvE.
Dwarf - Stoneform a very nice racial ability in both PvP and PvE. Treasure Hunting is not too bad.
Did i mention gnomes look great in goggles ? xD