I rarely use any of them. NHB is just a place to curse another member out without punishment, while SYG let's you curse out a celebrity without punishment. I don't really do either, so I just stay away. Now NHB does have my attention when **** pops off with other members, however.
Neither. SYG is extremely repetitive, and cycles through the same, stale, and hugely delusional arguments about whose fav iis better. NHB is full of vicious bullies with anger issues who use the anonymity of the Internet to take out their anger in a ruthless, and often embarassing, fashion.