Since the responses are supposed to only be from straight guys I can say that when I was straight I really liked it when she was on top and going for a ride.
My girl is more submissive than dominant most of the time, but she does "pull rank" (it's all about her) at times. I love it when she straddles my lap as I'm sitting, and rides me while I hold her sweet tender ass with both hands (when I'm not fondling her tits and nipples). So my choice would be A. Ride me.
These positions are all very good it's what you want out of them at with your devilish thoughts that matter. All these positions you control the lady. Missionary was always good to my benefit.
Best to try everything on for size to see what fits but I’ll defiantly be spanking that ass from behind