Ok, I'm not good at writing graphic goriness, because I love just traditional zombie-ness and all its goodness. So, with that considered, I would go with Jonathan Maberry's Rot & Ruin. One, I love the story in it, some of it is cliche, but I love its flow and concepts. Two, I absolutely love the characters and already have my dream list of actors to play the characters. Due to my general boring-ness of an answer, please inform me of what your dream Halloween-book-to-movie selection would be!