I've played School Days. Not "most of them" end badly. It has three infamously bloody bad endings and in the rest, Makoto ends up with one or more of the girls. There have been re-releases with extra bad endings, but the number of good endings still far outweighs them. But yeah. I liked the interactivity of School Days, if nothing else.
I guess really, I like VNs that have more interactivity.