I'm really enjoying Read Alert's "Best Book" series.
Run by the State Library of Victoria, Read Alert is a great addition to the kid lit blogging world and the "Best Book" series is so much fun. Their goal is the following: "Read Alert has asked a wide range of writers, booksellers, librarians and others for their best YA book for 2006." They have been publishing individual entries and will post a complete list on Dec. 16.
I love these kinds of lists, when literary (or at least smart) people are consulted. The Guardian and the Scotsman have published such lists of favorite adult reads here and here.