Favorite book that I read last year:
This is tough, as I read some pretty great books last year. And even though I loved Toni Morrison's Home (and read it in one sitting), I'm going to have to say my favorite of 2012 was 1Q84 by Haruki Murakami. It took me three months to read, on account of it being over a thousand pages long, as well as me being in graduate school at the time.
What I love about this book, and about Murakami's writing in general, is just how little information he trusts you with during the early parts of the book. Until close to the end, I had little idea what the heck was going on, but the little plot tidbits I did learn, along with the intense imagery, kept me going.
I traditionally enjoy crazy fiction. Parallel universes, mysterious magical beings, cults, conspiracy, secret societies. If I'm saying "WTF" regularly while reading a book, it usually means I'm going to like the book as a whole. This is definitely a book filled with amazing WTF moments.