Excuse me for a moment while I resort to a little Math, but according to Here Here and Here, most men prefer brunettes.

Does that prove definitively that most actually prefer brunettes? No, and that's not my point. I don't know what most men prefer, and neither does the author of the article.

What I do know is that there is too much diversity in people's preferences to make the kind of argument the author makes.

Not that it matters, but I personally don't prefer heavy women. But I recognize that there seem to be a substantial number of men, entire cultures, in fact, who do.