I'm not being funny but would you men date a girl who you thought was unattractive? And people are kidding themselves when they say looks don't matter, how can you have sex with someone consistantly who you don't find attractive?
Mind you, looks doesn't neccasary = attraction. I've been attracted to some ugly women in the past... Not neccasary relationship material attraction but women who I'd think "hmm.. she looks like she's worth a bit of fun", whether that be her appeal, her dress sense, her attitude, her looks, whatever. As harsh as it sounds, I'm pretty sure women feel the same way. Likewise some ugly women I found to be good relationship material because they are caring etc... But some are just a no go for me.