I voted
What are they? just to be perverse...
Actually, like most I prefer the book. Books exercise your mind, allowing you to build the scene with your imagination. Imagination will always triumph over visual media, technology just does not come close (at least yet!)
I do go to movies but I do not expect them to be able to immerse me into the action like a good book will. Give me a good Robert E. Howard Conan novel or a good H. P. Lovecraft story and I'm good!