well, according to a couple studies based in London and the United States the majority of guys look at these body parts in this order. this is not based on attraction, just based on the way a guys mind processes info when trying to find a mate.
The face I have no idea why, but according to the study I was checking out, the reason why the next three are in that order, is because the male mind is trying to find an ideal mate, and because of this the mind in males is trying to find the woman who has the highest chances of survival on the ratio of .70 between the breasts waist and Butt. ( Ideal figure being that of an hour glass).
3)overall facial structure (ugly or not)
8)last thing I notice but most important is personality