The Morning News does a Tournament of Books every year, and they've released the brackets!
I have to admit, this kind of "competition" seems kind of silly to me--how do books go head to head? How can you put Round House up against The Fault In Our Stars? That's the only bracket where I've read both books, and aside from both being about teenagers, they have pretty much nothing in common; comparing them is apples and oranges.
But of course, I haven't read most of them (many on my to-read list, though!). So I can put only slightly more thoughtful consideration into this than I do into picking Superbowl Squares--which, I will point out, were randomly generated.