I really just love Howl's Moving Castle! It's just delightful, whimsical, and such a wonderful adventure. I think the characters are all well done, you find yourself really appreciating all the quirks of the characters with all the giggles and eyerolls that accompany that. This book is such a unique, fun read or listen. I'm not sure if it's really in my top books of all time, but I just love this book so goshdarnmuch and I recommend it to everyone. This is also one of the few situations where I love both the book and the movie equally even though they are pretty different!