I like a dose of both.
Rapey hentai is just great in terms of expression on the female. And yes, it does get me pretty excited. Even so, I'm not much of a schlicker for it, but I read a lot of NTR/rapey hentai for the plot or for the art. Art's great.
Vanilla/lovey-dovey hentai usually has a cute twist to it. I love that!
I'm still more into vanilla/lovey-dovey hentai, though.
It's probably because I'd prefer not to get raped IRL. But some rapey/NTR hentai have amazing art. You can't deny that.