I  am quickly becoming a huge fan of Carlton Mellick III. His books are everything that excellent about the bizarro genre. They're weird as hell, bloody as hell, and so much fun. The story and the characters are what make his books outstanding. Even if they're terribly unlikable, he makes sure you know how they got that way.
Mellick's take on the zombie genre is entirely unique. You might think you've read books about a zombie game show before, but I promise you it's never been this awesome.