Human male anything. Bonus point if he has that horrible, blond anime-wannabe hairstyle that I ended up nicknaming Goku-hairdo. Even more bonus points if he's ret, because then 99% of the time he will be terrible.
Oh, for horde, that would be male orc anything. I just haven't ever seen a good male orc, though male troll hunters make me on edge, too.
Of course, I wouldn't refuse him in my pug, if I'd make one, and if everything looks good, but still, I'd be expecting the worst. The discrimination is in my head, as a result, so I'm not sure if I should vote yes or no.