Cheating a tad here: Favorite book of my not-favorite series:
I first read this when I was fourteen. Since there was a six year gap between book three & book four, it's a damn good thing that I had this brilliant thing to keep me warm for that whole time. Another one by King that I've read so many times that I've got bits of it memorized, this is a very bright spot in a series that was kind of downhill, gradually at first & then sharply like "whoa-what the hell happened here?" from here on out.