Perhaps that's because we were all raised with some kind of male dominance in our cultural backgrounds, so we tend to value more "masculine" traits and achievements? Even now, women are trying to prove their equality with men by exhibiting traits that men hold in high esteem and becoming successful in things men typically do.
In contrast, my wife is a stay at home mother (who is better educated than me, BTW). She is far more nurturing than I am and much more capable of raising our kids than I could ever dream to be. Why would I be "better," just because my skills are more marketable? I'd say she is better at her primary role (raising the kids) than I am at mine (making money). Therefore, I would argue that she is superior to myself.
Yea, I'm taller, stronger, faster, better at sports, etc., but what do those traits really mean to me?
I was going to avoid the thread, not because I disagree with any of it, but because I think it will take time for people to adjust to our new way of thinking. I'm 49, so as a child the male / female roles were pretty well defined. Men went to work, women had kids and took care of the family.
We're now at a point where we encourage our daughters to do anything a man can, we're more tolerant of boys that prefer to play with dolls instead of trucks but there's still a long way to go.
What concerns me is that in this attempt to blur all the lines in the name of equality we don't lose sight of the fact that there are differences. I still expect my daughters boyfriend to treat her with respect and as a lady, not as he would his buddies.