I may have said already in this thread, but the guy is important to me. Obviously not as important as the girl, but some guys really distract me and put me off if they're too involved in the scene or are a particular eye sore. Other guys are just right, they are involved just enough for the focus to be on the girl.
Mark Davis is my personal favourite because he always, always gets the girls off and they all seem to really like him, he has a big cock which is better to see than a maggot and he's uncut, which I appreciate since I'm uncut myself.