Am I the first woman to respond in this thread?
On women I like breasts and bottom equally. But mostly the overall body shape, everything in proportion. I don't like (near) flat nor overly large compared to the rest of the body.
On men I definitely notice the bottom more than, let's say a six-pack or whatever.
And that's all shallowly speaking, to be honest. In reality I'm more like AlanBarr. Intelligence, a friendly character and a good sense of humour will overrule outward appearance any time for me. Good looks are just a nice bonus.