I use GL to take my mind off of mainstream hentai.
BL is ... let's just say no sane guy, unless he's gay, would watch it.
Other hentai types, ahh idk. I just watch/look/read Yuri and Hentai. I'm not really into rape hentai, they're just a bit too much for a 14 year old.
Well, I watch anything except Yaoi if someone actually suggests me to.