I hear this going around a lot. I don't know if its my own personal experience and perception but women all tend to be roughly identical in bed. Sure I've slept with some that are more adventurous and some that give blowjobs (and others that don't). But my general view is that women as a whole are more or less the same in bed. The men do 90% of the work, we usually decide the positions to fuck in, we control the tempo and we determine how long the sex lasts.