I don't like depressing art. That's not to say it is inherently bad, or that artists should not produce it. That's great, fine. However, for me, there is a cost to consuming such art (being depressed). Thus, the benefit of consuming (quality of the art) should outweigh the cost (any depression caused), or I am annoyed. Furthermore, one of the easier ways of creating dramatic tension is to be sad, so it seems like a cop-out to me. It is much harder to do great comedy; that is, comedy that actually makes me laugh (don't tell me about Moliere or South Park; barely a chuckle from either one). So, my ratings are slightly tilted away from depressing.
Also, I have found a couple of types of books I tend to like:
Of course, the ratings are slanted towards the top, for many reasons I'm sure. For example, I only tend to get books I think I'll like.
Books with the same rating value are a little bit ordered, but not always.
They are divided into