Ha, you got me pegged with the Snow White reference, that was a big influence. It's all about the contrast, and that's the only reason I can think of why I'm usually not attracted to blondes. Contrast and contradictions are always interesting, if nothing else, whether it's appearance, personality, or art. Pale blondes just don't seem as "present" to me.

ps: just a disclaimer, I -know- this is all just about the surface... I'm not so shallow that this is all I notice, when a woman first speaks to me then it's a lot more about personality.