Reading through your comments a lot of people like 'It' I liked this one too; I think it is possibly the concept of an alien being that takes the form of whatever you are scared of that I found so gripping.
I also liked 'Misery' which I found so much better than the film version eventhough I did also enjoy the movie.
I didn't really like 'The Girl Who Loves Tom Gordan' Stephen King seemed to be attempting to take a different direction with this book which didn't really appeal to me. Also I didn't really like his first book 'Carrie' I don't know why it just bored me and it is only a novella.