Mike Horner, if he can remove that goofy grin from his face while doing a scen.
Peter North (but in way too many)
Julian
Rocco
John Dough
Hershel Savage to a degree
Kevin James in some scenes like in Taboo II
Tony Tedeshi
And honestly, I look at a scene to see who the male is, regardless of the female. If it's a guy that I don't like at all, I won't watch it no matter how hot the woman is. To me, the male makes or breaks a scene. I watch porn to see two people engaged in sex. If I was only into it for the women, i'd just watch solo masturbation or girl-only stuff.