Well, I like mostly everything... the problem with Hatsune Miku is that there are way too many beatmaps of it, and Touhou's original music isn't bad. I just HATE HATE HATE anime girly-voiced TV-sized songs, because (well, apart that there are too much maps of that) the voice sometimes is just awful, and I feel weird playing that kind of thing. It's not something I'd play in public, if you know what I mean.
I'm okay with Hatsune Miku and Touhou, but don't forget I always prefer instrumentals/english songs. I chose I LIKE EVERYTHING because even some anime openings have been catchy to me, but just a few.