One of the best chapters in ADWD has to be Bran's final one. The most overtly magical the series has been to date. His plotline is the one I'm most excited to follow in the next book, along with Arya and Sansa's.
The show will probably cut it down dramatically, seeing as they want the show to resemble a generic cable TV blood-and-tits historical drama, rather than the fantasy series it should be. Cutting Arya and Jon's warging was bad enough, but losing Coldhands and the talking door was too damn far.
There's more to ASOIAF than King's Landing.