I think it depends on the guy.
One of my ex's was on the fairer side of men, he kept his hair long and often straightened it. He didn't start shaving his legs or manscaping until he started dating me and one of his friends shaved one of his legs while he was sleeping (Boys will be boys)
anyway, he shaved the other one to make it even and I ended up liking it on him, so he kept them shaved.
My boyfriend after that, however, was 6'4'', with nice thick hiking muscles on his legs, so on him leg hair was just as sexy as no leg hair on my other boyfriend. Then again he was blonde, as was all his leg hair so it wasnt a gross amount of hair.
I tend to lke my men less hairy, I like them to manscape and shave their face, I dislike hair on the chest or back, and to much armpit hair flips me out. Leg hair doesn't bother me as much (Unless its thick black gorilla hair, uck!)
I think its worth a try with any guy just to see how they look.