The Washington Post just published its list of the top 50 fiction books of 2014. That’s all fiction, not just mystery fiction.
The Derek Smith Omnibus was at number 12:
http://www.washingtonpost.com/entertainment/books/the-top-50-fiction-books-for-2014/2014/11/20/606800ac-3dc6-11e4-b03f-de718edeb92f_story.html