I don't think this one has been mentioned, but I might have missed it. Some good books by Diana Jones would be her Chrestomanci series.
A lot of the books I really have been mentioned before, like Princess Bride, LotR, Dan Brown's books, His Dark Materials, Eragon, Sherlock Holmes, and of course Harry Potter. I don't think these have been mentioned: Michael Crichton's books, the Hitchhiker's Guide, the Bourne series, Brian Jacques' Castaways of the Flying Dutchman, Lost Years of Merlin, the Dresden files, Artemis Fowl, Laurie R. King's books, the Lovely Bones, Peace Like A River, Stephen King, Catch Me If You Can, and the Thief by Megan Whalen Turner.
I think that's most of my favorite books.
Oh, and some of Robin McKinley's books are: Spindle's End, the Blue Sword, and the Hero and the Crown.