Zombies vs. Unicorns by Holly Black and Justine Larbalestier (September 14th 2010--Margaret K. McElderry)
"this teen anthology asks the question: which is better and badder, the zombie or the unicorn?"
Short summary, but that's all you really need to know about the book. I'm always torn between the two!
This meme is hosted by Jill at Breaking the Spine!