As already stated by other people the 2 cd's are different sounding but compared to some of the stuff that gets raved about on this board I would take 21 Guns anytime. They are both great cd's and the band are in a much higher class than the likes of Attraction, Shanghai, Brian McDonald etc etc.
More professional sounding for starters and song writing quality and musical ability are world class. I personally don't think there are any fillers on the second cd at all but maybe I am biased because I love Scott Gorham.