Seriously, though, after reading a book about the evolutionary utility of beauty ("Survival of the Prettiest", a great read), I did some internet research on the science of beauty. Beauty is mainly facial symmetry, apparently, which artists have understood for a long time. In fact, they came up with an actual formula (face mapping)
http://www.beautyanalysis.com/index2_mba.htm
to determine it. I can't remember if it was on this site or another one, but Halle Berry's face was perfect. Even across racial lines - give her white skin, oriental skin, it didn't matter - her face could fit any race and she was still stunningly beautiful.
Of course, in reality, sometimes we like something just a bit "off", but still well within the parameters.
Anyway, this is a serious derail, but I couldn't help it with the Halle trigger.