For women's hair, I like the shiny hair you see on TV commercials. Brunette, blonde, red - I like them all! I prefer shoulder length hair or longer. But not too long. One girl I dated had hair down to her waist and it would take a long time for her hair to dry. One time she cancelled a date because her hair wasn't dry. Or was it???
My girlfriend's hair is the most beautiful and perfect hair in the history of hair. It's long, blonde, thick and finger-tight curly. Pictures do not do her hair justice. I don't have any pics, but it's absolutely perfect.
I like clean hair. That's my number one concern.
Really it is one of 3 things that will turn me off of anyone being friends or otherwise.
Clean Hair. Wash it at least once a day if not more
Clean Teeth. Brush them well at least once a day.
Clean Body. Clean yourself.
But for perfect hair:
For myself: Curly red hair like what I was born with
For anyone else: I'm not to picky it varies from person to person.