Mostly 1980's pop music, back when video killed the radio stars of course. But I also like many other genres so I think it will be shorter to speak of the genres I don't like.
I really don't like Rap, man I hate rap, it's too repetitive and kind of aggressive, doesn't ring with me.
Hip-hop is also a genre I don't like, I'm not even sure how to define it.
Techno, trance and related genres are totally not for me. I see no depth in such music, it's just noise that junkies enjoy when tripping on drugs in a night club. Other than that, I think I like everything else.