I like a woman with enough hair to make a full body suit out of it and then use that hair to make demons with which she vanquishes her enemies.

I think I like about any hair on girls as long as it's not super long (butt length is too long for me) or really messy.

Can't really say I have a preference on guys, as long as they take care of it! But there's no hair cuts that come to mind on guys that immediately make me think they look dumb.