I've flown with some women who just aren't pleasant, but think about it. If you were in a world where you were constantly under the microscope, and constantly having to deal with sexism, you might get a chip on your shoulder too.
There seem to be three types:
1. The "one of the guys" female pilot. She will curse like a sailor, and show you all the good porn sites.
2. The "I've had to struggle against the machine" type. She has a chip on her shoulder as a result of all of the pure BS she has had to fight.
3. The "normal pilot" who you can't differentiate on the basis of gender. These seem to be the rarer type. Perhaps they just haven't been around us ass holes long enough?

Ladies on here, this is purely an observation. I'm in NO way against women in aviation, and I wish you didn't have to struggle like you do in this "man's world" of aviation.
(I hope this post isn't taken the wrong way...)