Black cat fur is easiest to conceal on my clothing without spending a half hour lint-rolling everyday. That's about the only preference I maybe have.
I love all cats, they're all little weirdos. I don't much like the idea of preferencing people and animals for purely cosmetic reasons, and the idea of assigning personality types to coat colours also makes me uncomfortable. I just don't know if there's any evidence for that correlation, and the concept hits too close to home for me. I also am not a fan of breeding for cosmetics.
I still enjoy the images that come from oneorangebraincell, because I like seeing any cats doing silly things.