30 Days of Book Discussion: Day 1

I saw a great idea on a local book blogger's blog about doing a 30 day book discussion.  I'd like to do it because I think a lot of the questions look like fun and to try to be a little more active on my blog this month (I might combine a couple of the days now and then).
The questions are as follows:

• Day 1: The best book you read last year
• Day 2: A book that you’ve read more than 3 times
• Day 3: Your favorite series
• Day 4: Favorite book of your favorite series
• Day 5: A book that makes you happy
• Day 6: A book that makes you sad
• Day 7: Most underrated book
• Day 8: Most overrated book
• Day 9: A book you thought you wouldn’t like but ended up loving
• Day 10: Favorite classic
• Day 11: A book you hated
• Day 12: A book you used to love but don’t anymore
• Day 13: Your favorite writer
• Day 14: Favorite book of your favorite writer
• Day 15: Favorite male character
• Day 16: Favorite female character
• Day 17: Favorite quote(s) from your favorite book(s)
• Day 18: A book that disappointed you
• Day 19: Favorite book turned into a movie
• Day 20: Favorite romance book
• Day 21: Favorite book from your childhood
• Day 22: Favorite book you own
• Day 23: A book you wanted to read for a long time but still haven’t
• Day 24: A book that you wish more people would’ve read
• Day 25: A character who you can relate to the most
• Day 26: A book that changed your opinion about something
• Day 27: The most surprising plot twist or ending
• Day 28: Favorite title(s)
• Day 29: A book everyone hated but you liked
• Day 30: Your favorite book of all time

So here we go:
Day 1: The best book I read last year.

Thanks to Goodreads, I actually know what I read last year!  I love sifting through that website and seeing books that I've devoured.  They have really fun stats where you can compare years as far as number of books read, number of pages read, etc.  Right now I'm trying to beat 2008's 46 books (I'm currently at 40 for 2011!).

So my favorite book of 2010?  I think that would have to be Incarceron by Catherine Fisher.  It's about a living prison that's aware of the inmates inside it.  One of the prisoners finds a way to communicate with someone on the outside - the daughter of the Warden.  But not everything is as it seems and this one keeps you guessing until the end.  This is sort of like Hunger Games meets Graceling.  There's a sequel that came out this year that I enjoyed, but not quite as much as the opening novel.  Why does that always happen?

So what about you?  What was your favorite book that you read last year?