I have to admit the Smaug sequences were well-done with him coming across as just about as deadly as anything that crawls around on two wings can. I was still annoyed at leaving him with no hands. That's fine for bestial dragons, like in SoI&F, but sentient, especially the super-cunning type of sentient, and supremely powerful beings deserve hands, dammit! Even Leto II had hands. Not to mention just about every semi-official illustration I have ever seen features a four-legged dragon.