You can count me among one of the ones who doesn't spend most of my time complaining. Between work, sleep, eating, sex, hanging out with friends, watching TV or movies and volunteer time aside from the many other things I do on a regular basis, I don't have time for complaining to take up most of my day. Sure, there are times that I do complain, just like anyone else. But MOST of my time, no. I'm too busy.
Here's an idea for you that you may not have considered. Perhaps you only perceive that women complain most of the time because the times you happen to pay attention to what women say and do, they are mostly complaining. During the times when women are doing something else, they don't capture your attention.