Personally I like male characters. Females are much harder to create well and a lot of writers can't seem to get that gender right. As well, the female stereotypes in anime and manga piss me off. Males are better lead characters simply because people make them better because it's easier to create a good male character that doesn't come off as a bitch, slut, or other misogynistic term.
But, I do find that female characters make better villains. Something about a woman makes me think 'evil witch' more than a man does. Woman seem more like ones to make better plots because of the way they use both right and left sides of their brain more than males.