I read The Hobbit when I was about 9 or 10yrs old and loved it, and progressed onto the Lord of the Rings trilogy. The films were good, but as is very often the case with films made from good novels, they cannot compare with the books at times. I love the depth they go into, the full immersion and imagery you acquire from reading them, and how some of the themes are still applicable nowadays.
I've wanted to read The Silmarillion for some time now, and I think I will have to go and get a copy soon.