I would rather not date a girl with acne. Yeah, it's harsh, and definitely hypocritical (though, hopefully not for long). Two reasons: I would want to dilute my predispositional acne genes in offspring, and it looks bad/can have negative effects on psychological health.
That being said, I think that people who suffer from acne have more tender hearts, and are generally more reasonable, understanding, and forgiving people - especially those with severe acne - because they (we?) know what it's like to be somewhat of a social pariah. Also, it seems likely that people with acne, on average, take care of themselves better. They eat healthier, they exercise more, drink and smoke less, etc because of their condition. So there are definitely some positives there.
I think it's true that guys have an easier time sporting acne on their faces. Evolutionarily speaking, males tend to seek females with more neotenous traits (earlier pair bonding = assured reproduction). Females, on the other hand, tend to seek males with more mature traits (stronger mate = better chance of offspring and self to survive). Acne is a grotesque trait - neither mature nor neotenous. But since mature traits are correlated with age, and age is correlated with grotesquity, males can get away with having acne more often than females can. It isn't really fair; but then acne isn't exactly a boon for guys either.