I don't really like overly hairy chests but I don't mind a little...my boyfriend usually has little if any. He started shaving his chest about six months after I started dating him and he's been doing so about every couple weeks since. When he doesn't shave for a while he still only has minimal chest hair and none on his back. I think body hair bugs him, which I can kind of understand.
Anywho, overly hairy chests remind me of my father which of course is a turn off. Mike Rowe looks pretty decent without a shirt on though, I could go for that look.