Some people keep a running list of all the books that they've read during the year. I think there are even some good websites to help you keep up with your list and ratings. I can tell you that I've enjoyed the fiction from my 2010 list. I listen to at least a couple of books a month during my commute. When not working or writing, you can find a book in my hand. Here are my favorites from 2010:
Best YA: Beautiful Creatures
Best Audible Contemp. Fiction: The Help
Best Non-Fiction: Super Freakonomics