I'm not sure that I can really choose just one. I love a lot of different positions and it just depends on what I'm craving each time. Usually though at least once every time I'm on top for a portion of it though, so I chose girl on top.
It was hard to choose just one. But eventually I went with the reverse cowgirl only because my fiance and i have just recently tried this and I just love watching the strapon go in and out of her, pulling on her soft pink lips. *Dreamy Smile*
I love many positions but girl on top is my favorite as being a control freak, I can assure that all my pleasure spots are addressed by tempo, position and satisfaction. My b/f lasts longer this way as well.
I'm torn between man on top and girl on top. I love both, but I think I prefer man on top. I like to be pinned down and fucked silly, plus I like to be face to face/chest to chest with the person I'm having sex with. For some reason, holding something (like their body) close makes me cum harder.
Torn between man on top and doggy style. There is no comparison to man on top for my wife to have an orgasm, and I want to please her of course, so it probably wins out. Still, I love doggy style, but it doesn't have enough face to face, as mentioned above, to be the best.