The difference between Angelina Jolie and the typical playboy bunny.
Both are sexy.
Mix A is more A314ish for women, whereas Mix B of Instant Sexiness goes in a more girlish direction. Sexy for sexiness’ sake. 
My own preference, for the most part, is Mix A, because I like more competent, higher value women.
Different strokes for different folks. Even though men are kind of simple minded when it comes to attraction, we still don’t like the same exact thing. Not everyday, anyway.