I think class more than anything. The women's colleges I know do try hard to make sure their students are diverse, but if anything they have to be careful they don't have TOO many Asian girls, or the balance will go off the other way. My cousin went to Wellesley (alma mater of Hillary Clinton), and going to her graduation I swear every time they called a common Asian surname there would be this giant line of girls. Seriously, when "Kim" was announced I thought they would never end.
Although Wellesley has extra attraction to Asian families because Madame Chiang-kai Shek went there. They have a porcelain elephant from her in the Admissions office and everything.
Do these schools also blatantly discriminate against Asian students like Ivy League schools do? Because with the latter I have no idea why that's even remotely considered acceptable.
I can't remember the last time I had a class where the girls weren't the ones standing for the majority of the hands raised, joining student councils and administrating trips for the whole class. A girl taking up the role of the class mommy is damn near inevitable, whether it'd be the kids of a bunch of rich yuppies or otherwise. There is however a noticeable trend for guys to act dumber than they actually are and never commit to anything except the bare minimum because I guess they want to come of all flippant about school.
That's been my experience in my entire schooling life too.