Lots of humans, two dwarves (druid and psychic warrior), a half-orc (monk/fighter/tattooed monk), and a gnome (wizard/cleric/mystic theurge). I enjoyed them all, though the gnome really only because the GM gave them a cool animistic religion for me to play around with. The mechanics I wasn't too interested in.
I'm a dwarf man at heart, but sometimes it's just too hard to pass up that extra feat. The half-orc I enjoyed, because he ended up very orcish, with ritual scars in place of tatoos for the Tatooed Monk PrC. That guy was fun, but sadly the game didn't last long enough to really enjoy him.