Probably the exact same reason why girls only like good looking guys.

Umm isnt this a self answering question? men like pretty (attractive) girls because they are attractive, would you have us believe women like ugly men?

Natural Selection has determined that the more attractive must breed more because of a vicious circle. (attractive people mate, creating more attractive people who will also mate). it's really because in the animal world, certain features are needed to attract a mate in order to create off springs that will continue the life line.

Also, humans don't produce pheromones because we have developed a conventional and post-conventional way of thinking. our brains think on a different track, so attractiveness (though basic importance) is not the only thing that attracts a mate. Intellect, wit, and skills also attract mates.

Boys only like pretty girls. Men like pretty women but chose a woman based on compatibility.

Same reason women like rich or powerful men. Cross-cultural surveys indicate both of these priorities are universal in people. They are both conducive to healthy, well-protected offspring. Physical attraction has a lot to do with the outward signs of health.

Just Because :P

Nah but Really, I like personality a bit more that physical features, i mean i would not want to be with a pretty girl who is rude all the time. Some girl kind and caring would be gr8!

Of course if she is pretty, that's added

GIRLS ARE HOT HOT HOT BUT only when there prewtty no one wants a unatractive wo men atractive ones ATTRACT