Some parts of "A Clash of Kings" actually worked far better than "A Game of Thrones". But once again it all comes down to pacing. I cannot in any way agree with Martin's exposure of some characters and his choice of story lines. It all feels so uneven, so unpolished. Perhaps that is the true curse of multiplot-novels: all plots never work equally well.
(That said, I really do enjoy Daenerys' story. It is so mesmerizing, so magical. I could read an entire book about her - and never even miss Bran for a second.)