Great answer, but I still am a little unclear about what a nice guy is. I like when you mentioned "nice and interesting" because I think it explains how women feel about the stereotypical nice guy,he's boring. Not only is boring but he almost comes off as fake, because his behaviour is tuned to please. What I mean by that is he tries to please women by telling them what he thinks they want to hear, and by doing this he never displays a sense of his own individuality, making him boring.
I think nice guys,(at least the kind I'm describing here)just form the personality they display to women to try to get what they want, and I think most women are able to detect this.