In some ways, women are WORSE about judging on looks.
First of all, women judge men AND women by their attractiveness. Men only really do that to the opposite sex.
Second, the guys I know that are good looking have sex with a LOT of women (if they want to). I have seen women throw themselves at good looking guys countless times. "One-night stands" are the domain of good-looking men (hello, herpes!).
Third, nearly all women I know have multiple looks-based rules about who they might date that they are NOT willing to bend on (except on a weird fluke). Like - "no fat guys", "no short guys", "no ethnic looking guys", "no complexion problems", etc. I think the "no short guys" rule is engraved in stone for about 90% of women - which may be worse than the percentage of "no fat chicks" for men.
Don't get me wrong - a majority of my friends are women. I can only talk about work and sports for so long before going into a coma. But women judge men (and women) by their looks WAY more than they will freely admit.