Kevin Smith's on my side.

At the recent Comic-con he mentioned Twilight and, when his legions of fans booed and jeered, Smith chastised them roundly:

"That's the next generation of fans!" Smith said. "That's what I love about a comic book convention. People will come to a convention, stand there in a Spock costume, look at someone in a Chewie costume, and say, 'Look at that f__in' geek. How dare you pass judgment on those 12-year-old girls who like vampires!"(newsarama)

It's an interesting phenomenon this anti-Twilight fanboy rage, Vanetta Rogers over at newsarama, looks at the idea that there are inherently differing fan practices at work, with female fans engaging on an emotional level where male fans engage on a technical level. And, loathe as I am to swallow the old 'girls are emotional' schtick, it is a kinda plausible hypothesis. Anthropologist Louise Krasniewicz who  studyies fandom at the University of Pennsylvania observes,

"I've discovered at different comic book conventions that it's more about 'can you top this?' The men know what superhero did this and in what issue he did it. It's almost a competition game. With women, there doesn't tend be as much of a competition where they want to prove they know more. Their discussions are more likely to be about their emotional response to the characters. They want to talk about how the stories make them feel."

Which rings true of my adult self, although my sixteen year old self might disagree. However when Michael McMillian points out that

"One characteristic both [male and female] audiences seem to share is sexuality... In either case, whether it's Laura Croft or Edward Cullen, there are obvious sexual projections onto the characters of these fictional worlds. Genre seems to play a large role in sexual and emotional escape."

It becomes all too tempting to open the can of worms labeled "sex is emotional for wimmins, but not for mens".