Firefly was good. Angel and Buffy early seasons were good as well (although I do agree that Angel was at it's best with Tim Minear at the helm.)
Dollhouse was terrible. It was terrible for many reasons but the biggest was because it had so much potential to be more than it was. The TV show Marvel is pretty bad as well.
Cabin in the Woods was clever marketing. It's great to make the type of movie that if someone doesn't like it, you can just say that they didn't get it. I liked it but not the end (and yes, I understood the point of the ending and all the wonderful metaphors involved.)