Nothing's better than good ole classic MISH. It may be boring to some, but for me it's at the top. I like the intimacy of it, and it offers the most body to body contact. Never know when ya wanna lean down and get a quick smooch. Thick, curvy girls are the best in this position for me.
CG is a close second IF the woman has a good enough stroke and rhythm that will keep me rock hard. I like the ones who really GRIIIIIIND in this position and gyrate the hips. It's even better when she knows when to raise up and lower herself to be close at the right times, like a mind reader. If I wrap my arms around you when you're down, it means stay awhile...but keep grinding. And if she wants to come down and steal a smooch, that's cool, too.
I like it in doggy as well, mostly as a changeup from the other two to keep from cumming too quickly. Of course, this only works with some girls. With a couple of ladies I see, it INTENSIFIES the likelihood of busting a big one.
This is best when you want to POUND it a lil bit (if it's OK with the lady, that is).
These 3, in this order. Most of it depends on the female and the mood. Mish is my fav to 'go' in Don't think I've ever done it in any crazy positions.
Guess I'm too vanilla.