I read a bit now, but I used to read a LOT.
I kind of like the dystopian future type of books, 1982, A Brave New World, The Handmaid's Tale, etc. Its interesting to see how writers of the not so distant past thought technology would shape the world (not unlike Frankenstein).
Lord of the Rings Trilogy was good. If you liked the movies, it may sound cliché, but the books are better, so don't hesitate to read them.
The Dark Elf Trilogy (prequel to Icewind Dale) is my favorite book/series of all time. I read the first book in Greece at my cousin's house when I was thirteen, and 12 years later when I asked him about the story, he knew exactly what book I was talking about and I picked up the trilogy the next day. Flew through 1000 pages in just a few nights.
I read a few of the Shakespeare novels, but they started blurring together.
Dante's Inferno was good, but a guide is necessary to tell you the history about the real life people he is discussing. Found the history lesson just as interesting as the story though.
I'm a huge fan of the first 3 Anne Rice vampire books, (Interview with the Vampire, Lestat, and Queen of the Damned), although the only real interesting topic they cover is loneliness as an immortal.
Most of what I read lately though is fluff, like Clive Cussler (almost all of his books), Dan Brown, etc.
And I tried reading the Bourne trilogy and couldn't. The first one was blah, and I couldn't get through the first 50 pages of the second one. This is one of those rare, the movie was better than the book situations... seriously, they changed the plot for the better.