Why do men complain so much about shrews, harpies, bitches, castrators, etc., without mentioning or perhaps even thinking about the opposite? We talk about the opposite of ugly women, dumb women, unavailable women, slutty women, etc., so what gives?
Part of the problem, surely, is the obsolescence of the phrase "nice girl". It means any number of things other than "woman who is respectful, mature, and supportive", so we run into the very same Missing Term Problem I point out in so many discussions. But that only tells half of the story. I'm convinced that the reason men don't talk about how they desire to meet, associate with, and marry nice women is that it involves admitting, to themselves as much as the world, that they want to be treated well, emotionally speaking.
A woman can be pretty, smart, and virtuous in a vacuum, but for her to be nice requires someone to be nice to. Obvious though it might be, if a man lets on that his anti-bitch attitude is matched by a pro-nice-woman attitude, he may be tagged as a wimp who fears roughness and demands to be coddled. Nobody want to come home to put-downs, iciness, emotional instability, or a voice raised in anger.
As an adolescent I remember listening to the other males judging the girls in our class, and I remember all of them carefully avoiding this topic. Obviously they were highly focussed on appearance, but they seemed to pick around the topic of whether or not so-and-so was a backstabbing, trash-talking grouch. It is not a surprise that boys don't know what they want, but it's a little distressing that the same macho complex has gamed so many older males into forgetting.
Gentleman, it is not a weakness or even an eccentricity to seek out a woman who is kind, considerate, sweet-talking, sweet-natured, and thoughtful. These goals are laudable. You don't prove that you're a tough guy by letting a woman cut you down constantly, but you don't prove you are a tough guy by out-bitching her either. You just have to avoid that sort of person. You should seek the sort of woman of strong enough character that she holds her tongue rather than vents anger at another person, of strong enough character that she would rather criticize than insult, and rather inform than criticize. And you should be proud of that.