I got a comment from someone who called herself "Redhead Girl" recently on the post about Dr. Michelle Oakley, and that got me to thinking about how I've simply never found redheads attractive. I'm not suggesting there's any rhyme or reason to this: attraction is purely subjective, so trying to analyze it in some superficially objective way is essentially silly.
(Not that that's stopped me in the past.)
In my case, it may have something to do with the fact that for others, red hair is a plus, and so I've had various redheads pointed out to me as beautiful, and I always think, nah, with those features, if she were a brunette, she'd be pretty ordinary-looking, so what's the big deal?
To prove myself right, I Google-imaged "beautiful redheads." I kept scrolling through the pictures, and thinking, aha, I was right, these women simply don't attract me. Even though some actually were beautiful, which means that maybe it's the hair color itself which puts me off.
Then, I ran across this picture --
-- and actually got that old, breathless, high school feeling of having a crush.
Sometimes, it's gratifying to be proven wrong.