Six months ago, I would have said Potter. Now, after HAP, I realize it's nothing more than a sexed-up boarding school romantic comedy, with a few magical elements to spice it up. It doesn't do anything for me any more. The Lord of the Rings movies are fine by me, but with the book, I only got up to Tom Bombadil and gave up. As for Narnia, I don't even know what it's about.