Vampire Academy? The one where I read the first chapter and it was 2 non-proper-vampires-but-I-don't-know-what-exactly sleeping with each other, and this other girl reading her thoughts while she was doing it
(which for the record were something like "Yeah, Oh, Yeah, That feels so good Christian")?
Personally I found it a bit creepy.
Anyway. I have all these books I love (I've just read The Princess Bride and all I can say is - FEZZIK WILL YOU BE MY BABYSITTER FOREVER? YOU ARE EPIC-NESS'S ESSENSE.) but I don't really have a 'favourite book'. Just a whole long list
(To throw something out there: Not a Penny more, not a penny less by Jeffery Archer had such an amazing plotline XD)