Takes a while to think of all the ones I like, but petite girls, slightly masculine looking girls, tall/short, slim/average weight/very slightly chubby, short/long hair of any color. That's mostly my appearance preferences.
Personality wise I like sweet, nice girls, and submissive (not BDSM extent). Also personality-wise I can like feminine and masculine, but if a girl has a full on masculine personality I don't know if I'd dig it too well. It's okay for them to be that way, but in terms of my own preferences I can't say I adore it.