I finished this book last week. This is definitely a favorite for me. I don't know if I like it more than A Game of Thrones, but I do know that I enjoyed reading it immensely. It is the third installment in George R.R. Martin's A Song of Ice and Fire. I'm going to keep this review short and sweet. I don't want to talk much about the plot, because it involves quite a bit of spoilers. Suffice it to say, Martin's writing in this book is incredible, and he definitely changed my mind about at least one character that I had previously detested. The detail and thought that Martin has put into this series is absolutely mind boggling. Between politics and warring, he has covered the scope of a kingdom and has definitely left me wanting more.
You can find A Storm of Swords here, or at your local book retailer.