Although not even in the Top 20 of Best Looking Sets Of All Time... I do like the '72 set (people either love it or hate it)... but I think it's excellent design for its time... There's some cool things in there... including this beautiful idea... Billy Cowan with a halo provided by the Big A in the background. This is what happens when you get a photographer that's going a bit extra and not just lazy shooting in traditional ways...
I also love how the Alex Johnson is perfect framed by the card design... Nice touches, both.