[MENTION=22424]delericho[/MENTION] like that.
It is about context. I love warforged and mul. But never ever ever in FR or greyhawk, but in the Settings they belong to.
One additional: I would never ever allow dragonborn as PC in a DL campaign.
If my Players want to Play Monsters (Orcs, Drow, Draconians) i am fine with that for a Change, but then i will Play the Paladins and light clerics and the mighty city guard, and the gold dragon, and they are in for an all evil style campaign. If they insist, no Problem for me as a DM.