*blinks* Wow. I strongly dislike the people who have said or implied any or all of that to you!

I think, actually, it's not that 'pretty girls are dumb', but that a fair number of guys who are drooling over pretty girls want them to not be smarter than them. And they are the vocal and societally accepted guys.

The rest, I have no direct experience with, so don't really know. (and, I _wish_ I were more artsy than I have been thus far... my childhood was more strongly oriented toward scholatic achievement than aritstic. There was _some_, but...)