I think that the greatest book I've ever read would have to have come from the Lord of the Rings series, although I'm really not sure on which one. I love Tolkien. Outside of Tolkein, though, I really Jane Eyre and Frankenstien.
In order that I think they were important to me;
Bible
As a Man Thinketh
She love God, ...and me(for men married and to be)
Sexual Skills for the Christian Husband by robert Irwin (He and his wife worked through same major issues and they shared their success with the world.)
These we just nice sci fi and fantasy books.
The Cornicles of Thomas Covenant the Unbeliever
The dark Tower Stephen King.
Lord of the rings (Gave me patience in reading at age 10)
Factual war books
Templar Knight speculation/factual books
The Boy in The Stripes Pyjamas. I just read it and I think it is one good book. The language was simple and easily understood. I like books like that, simple yet meaningful. I know that there's the movie taken from this book but I love reading books more than watching movies.
It's almost too hard to decide on one, so I've narrowed it down to about four:
There is Ender's Shadow by Orson Scott Card, which is an amazing novel, even if you haven't read Ender's Game. Orson Scott Card is one of my favorite authors because of his intellectual nature. He does his homework before he starts writing, that's for sure. His style is very intriguing as well; the more realistic science fiction and fantasy he writes is amazing.
Also, The Princess Bride by William Goldman is good if you're looking for a good laugh. It's very funny and very serious at the same time; if you liked the movie, you'll love the movie, I think!
Did you know that The Phantom of the Opera was thought to be potboiler reading after it was first published in French? It really was Andrew Lloyd Webber who made it acceptable as literature! It's funny how books are more popular after something visual has been made about them, such as a musical or movie.
The last is Master and Commander by Patrick O'Brian, even though I'm not even done with it! I'm loving all of the nautical terms. It's given me a lot to look up and study.
I can't pick just one. When I was younger, I thought the 'Anzacs' was the best book I'd ever read but its been a long time since I've read it again...I am a huge Stephen King fan too, probably IT being the fave amongst his lot. I like crime-fiction also, Elizabeth George, Kerry Greenwood, Ian Rankin...but then I read the Twilight saga and the Harry Potter books too. And Tolkian. As a favourite? Way too many to say. I also like reading my Costermans' Gardening book...anything on natives (Australian), actually!