Personally, I thought the movie was better. The book was entertaining, but I really didn't like William Goldman's occasional rants about his fat fictitious son and equally fictitious ex-wife. I'm not entirely sure what he was trying to do, but it left a sour taste in my mouth.
I like how Humperdinck was changed from this big macho hunter type from the book to the movie's Machiavellian fop. That certainly was more fun for me to draw... and Chris Sarandon is always easy on the eyes.