Ever met a seriously hot girl, who then opens her mouth and suddenly you lose interest? Who wants to listen to a girl witter on about herself and her problems within the first two minutes of meeting?
Then you meet a girl, who's not quite so attractive but suddenly sparks creativity in you, inspires you, makes you laugh, makes you feel young again...
Obviously there is more to attraction than "looks".
This isn't a sexist comment. It goes both ways, and it is gender/race/age/religion unrelated.
The fact it even needs to be debated is scary and highlights how deeply most people have got hung up on physical beauty while ignoring the fundamental things that actually matter.
Looks fade, personality, generally does not.