Definitely dark brown on a man. Bad boy style haircut, not too well kept but not dirty either, and never long! Alternatively, very very short (shaved / number 1) can be very sexy.
I like dark haired men, but to be honest i really dont mind, loads more things come before the colour of his hair. I do like them to have hair though, the shaved look isnt for me.
I prefer my own hair to be red, love it that colour rather than its crappy normal brown!
On guys I'm not too fussy, prefer dark hair but can like blondie's and redhead's too.
im not too fussed what colour hair the guy has, Ive been attracted to lots of different types in the past, my current partner has dark hair and dark eyes
I've been brunette, red and now blonde, I seem to get more attention from the opposite sex, as a blonde, why I dont know, Im still the same person, though my natural colour is brunette.