As far as sorcs go:
Warforged: Self-healing
Humans: Extra feat,+1 Charisma
Drow: +2 Charisma
Half-Elves: +1 Charisma. Some versatility. With the new enhancements system, when it comes out, perhaps an extra +1 Charisma, as well, since the new system will stack stat enhancements [as per last dev comment on the matter].
Elves: Don't be silly. Elves are all wizards.
Dwarves: Nope.
Halflings: Nah.
Kobolds: Draconic bonuses, possible charisma benefits? Excellent choice! ..but not in the game.
So, you're left with DC/versatility and better gear selection, or self-healing.
Warforged typically come out better with that comparison, but I nevertheless still mostly play fleshie sorcs.
They're still fun, and do just fine in parties with adequate healers (assuming decent HP).