Men have all kinds of tastes. Many men prefer a GOOD woman as opposed to a sexy woman who thinks her *$@! doesn't stink. If a man is attracted to women just because of how they LOOK instead of WHO they are inside, that's a man that I wouldn't want because that means HE'S as superficial as those he's attracted to.
Biologically, if this is the answer you would truly like, man is just like any other mammal that we know of. Their instinctual drive is to breed and continue the human race. All animals do this. It's the way of the species evolving. This also leads us into why men are "driven by their hormones, and eyesight". Remember, now I don't believe men are "dogs" or women are "uptight" I personally like humans as a general rule, so with that being said, Men, will by nature seek out the most attractive to them to breed with. Again, this is all biological. I'm not talking about love, like, ..strictly animal driven. Each man is different and what may attract one may not another.