Women who feel they have to change you: Now, it's one thing if they're trying to help you change a bad habit, but I remember this one girl who asked me out, and then after accepting, she would go on about how I need to wear skinny jeans and certain kinds of shoes etc. Frankly, no. I dress how I'm comfortable, and if you have THAT much of a problem with it, door's to your left.
Valley girls: It was annoying when Clueless came out, it's annoying now.
Overly bitchy women: Everyone has bad days, not gonna fault everybody for that. However, I've known some gorgeous women who I found completely repulsive due to the fact that they were perpetually in a shitty mood, always being negative and getting angry about inconsequential things.
EDIT: Forgot to mention women who can't have a good time without the influence of booze or drugs.