I have not read them but watched the movies except the last one as I was kind of tapped out by the story by then and as you as I think this "we just make 2 movies out of one" thing (same with Harry Potter) is just resulting in a lot of filler scenes. Except I liked both of the last Harry Potter movies.

In general every book I ve read which got made into a movie I enjoyed the book more as sometimes I was really shocked how different I imagined the scene in my head.