Go SAS !!!
SAS sort of invented the whole Business Class concept, calling it EuroClass back in the 80's when their slogan was "The Businessman's Airline"
It has always been one of their key strengths and additional to that, you get to connect through a really nice airport... CPH
Go to their web site scandinavian.net Under About SAS you can find photos of crew, cabins and all. You can also view the seating layout of the various types.
Have a good trip and let us know who you chose and how it was.