I love the LOTR films, but aside from 'The Hobbit' the books hold no charms for me. I liked the first three HP books, but hated the first film and haven't seen any of the others. I didn't read the last HP book because Goblet of Fire or Flight of the Phoenix or whatever the hell it was was just so boring I couldn't stomach another.
As for Star Wars, I am married to a world class Star Wars geek, so can't say much. I mean, DH's friend is the Guinness Book of World Records for having the biggest Star WArs collection in the world, or the second biggest or something. In fact, so much of our lives is Star Wars based, I have a very skewed perception of the whole thing. I mean, it's weird because I am NOT a SW fan and find it all rather dull. Hate George Lucas's work, for the most part. Go figure!