For my money, definitely the CC. I am presently sitting at a Tiffin dealer having some service done on my coach. My wife and I walked through a new Allegro Bus, which is a pretty high end Tiffin. My CC fit and finish is in a different class than this new coach.
As stated previously the American Heritage is in a higher class than the others you mentioned, very comparable to the Magna I have. The others would fall somewhere near or below the aforementioned Allegro Bus.
These are all my opinions only. Others may have different opinions.
FMCA #F431170, GS #822128658, Escapees SKP #112655
2012 Airstream Mercedes Interstate Class B