There is a site for trans dating which allows the users to indicate their sexual role. I was curious about the percentages of the participants.Second that. I run into more guys that like to be a sub, be dominated, give and not receive. I often think - from my perspective - why the universe seems to be completely lopsided with regard to straight/bi/giving/receiving/top/bottom.
Among the trans women, 5% were tops, 35% versa and 60% bottoms. Among the men, 5% were bottoms, 25% versa and 70% tops.