Well normally I'd play a boring human or a warforged, but I played a drow, tiefling, and high elf so far. Never been much of a fan of playing half-elves, but have done half-orc. Only because playing a full blooded orc usually isn't an option. I am considering playing a dwarf cleric at some point, but I want full-plate as an option if I'm going to be playing a Cleric of Moradin.
