Its an interesting subject, I think you are on the spot and on the issue of the woman's choice uneducated losers, I think it has to do with the fact that these men are USUALLY more aggressive, maybe this projects strength? (possibly strong hunter and protector) I also think its most likely upbringing as well, most women who fall for these bad boy types have had an early sexual experiences (not all) but many have (or even abuse).. On the other hand Intelligent & Emotionally strong women seem to go for a man who has a bit of both Brains and Physical strength (possibly preferring one a bit more than the other)
