The Dresden Files, The Dark Tower, The Wheel of Time, and while I didn't enjoy reading The Lord of the Rings, I did immensely enjoy The Hobbit (I enjoy the fantasy genre, in case you hadn't noticed).
I've just recently begun the first book of the Malazan Book of the Fallen series. I'm a little less than 1/3 of the way in, and I'm enjoying it so far. The author does a good job of giving you just enough information about the world to keep you interested, but keeps enough shrouded in mystery for you to want to keep reading to find out more.