I like both, but which I’m inclined to read depends on my mood. I generally gravitate towards novels – because they take less time, if you can believe it. By that, I mean that they’re usually divided into chapters, and in my experience, a short story is longer than a chapter of a novel. So if I’m riding the bus and want to read, I’m more likely to finish a chapter than a whole short story. But each has its place, and I think some of the best writing has been done in short stories. Eudora Welty and Flannery O’Connor spring to mind, but there are many others as well.
What about you?