This year's winners are a mixed bunch. A few re-reads from previous years (Naipaul, Kesey), a multi-read within the year (Seneca), a conversion to believer in the cult of DFW (Wallace), deep historical research (Caro), philosophy (Schopenhauer and Belloc), and great story telling (Mistry).
1. Letters from a Stoic by Seneca, translated by Robin Campbell
This one takes top prize because I read it twice in 2012 and have recommended it to nearly everyone.
2. The Path to Rome by Hillaire Belloc
3. A Supposedly Fun Thing I'll Never Do Again: Essays and Arguments by David Foster Wallace
4. The Passage of Power: The Years of Lyndon Johnson by Robert Caro
5. A Fine Balance by Rohinton Mistry
6. Sometimes a Great Notion by Ken Kesey
7. Essays and Aphorisms by Arthur Schopenhauer
8. A House for Mr. Biswas by V.S. Naipaul