Who Believes that Girls like Bad-azz?

You're correct to a point, ages 14ish-19ish is when the bad guys are the most desirable for females, because that's when its primarily about having a good time and we all know the bad boy gives a female the most excitement. After maturity is obtained for females, they suddenly start wanting the good guys out of concern for their future kids and family dynamics. The bad boy gets lots of (and AIDS) early and the good guy gets married and has kids later.