Like FHN, I am at an age of where I know what I want and what I do not. I find that men say they want independent and intelligent women but when actually presented with one, they quickly realize they prefer the more passive woman.
My turn offs would have to be (in no particular order):
Poor grammar
Bad teeth
Poor manners
Shallow/self absorbed
Uncultured
Lazy
Disrespectful
Smoking
No sense of humor
I don't throw lack of chemistry in there because that is so subjective. I have found myself attracted to someone unexpectedly while repulsed by another who, under strictly objective criteria, would normally be attractive.