There are some positions where there really isn't a top or a bottom, hehe ;-)
I like both... however, at my current whale-osity, I prefer the BOTTOM. And, for me, it's not about domination or whatever... it's about whatever position tickles that one little spot. This changes on a regular basis for some reason.
But... for foreplay, I do like to be thrown around and man-handled ... so I guess that's submissive.