Here are my picks. Some were published in 2013, some earlier. These earned 5 stars:
I rated the next set 4 stars, but they each came very, very close to 5. It was also really hard to pin it down to just five books. (And if I had included all the 4.5-star Temeraire books by Naomi Novik, I would have had 4 more!)
I wish I could have included 10 or 15 more! What were your favorite books this year?