What Are The Greatest Fantasy Novels Of All Time?

Over at io9: What Are The Greatest Fantasy Novels Of All Time? An excerpt:

If you could put together the perfect list of great fantasy novels, what would they be? Lev Grossman, author of The Magicians, put together his list and posted about it over on The Week.

Grossman's list is non-ordered, so these are all ranked as equally awesome:

— The Lion, the Witch and the Wardrobe by C.S. Lewis
— The Once and Future King by T.H. White
— Fritz Leiber's Fafhrd and the Gray Mouser stories
— The Lord of the Rings by J.R.R. Tolkien
— Jonathan Strange and Mr. Norrell by Susanna Clarke
— Magic for Beginners by Kelly Link

I like Lev Grossman's list. Your choices?