Totally obvious choices for this category - Mockingjay by Suzanne Collins and Last Sacrifice by Richelle Mead. Mockingjay finishes the Hunger Games trilogy, and the end left me feeling like the story had been wrapped up in the best possible way, where everything wasn't princesses and fairy-tale castles and happily-ever-afters, but it was perfect for the story and the world and the characters. And then there's Vampire Academy's ending, Last Sacrifice. This was such a beautiful book, just as heartwrenching and funny and romantic and shocking as Mead's other books; it finished off the series beautifully. I love both of these series, and I feel like they definitely got the endings they deserved.
What are some of your favorite endings to series? And, speaking of endings, this finishes off my Best Reads of 2010 feature. Tomorrow, I'll just be posting a list of the books I'm looking forward to reading in 2011, and then saying goodbye to a great year :)