I found both yaoi and yuri to be really similar to the traditional het relationship model which we can see in women-oriented mainstream culture. Which is disappointing.
By the way, not all men in yaoi act like women. The 'top' usually acts like a son of a bitch.
I mean, like an extremely authoritative and dominating male. The 'bottom' often makes an impression of being girlish, and also generally weak in a non-gender-related way.
Me, I'd like to see a dominating female lead for once. What can I say, my idea of a perfect girl is Lina Inverse.