I personally would have voted for Every Soul a Star for Middle Grade Fiction. I tried to read The London Eye a few months back and just couldn't get into it. I'm sure it's a great book and nothing against Siobhan Dowd at all, just didn't do it for me. Plus, Wendy Mass just happens to be one of my favorite authors, so I may be a bit biased on that category ;)
Other winners were Mo Willems, Shannon and Dean Hale, and E Lockhart. See all the winners.
Congrats to everyone!