There is something about a man with long hair that just drives me crazy, especially if they have stubble and tattoos. Sexy! (Right now I'm thinking of Johnny Depp and Colin Farrell... yum!)
It all depends on the male. Some look nice with short hair, or even no hair. Like, Billy Howerdel. Every hair length looks great on, Cillian Murphy. I love him! He's such a brilliant actor. Then there are the guys that make me wonder; can they do anything to make their hair look nice. :\