As I understand, The Anthem has the best setup and possibly sound with ARC, but lacks some features such as a height channel, 9.2 amp and other features. It seems that YPAO on Yamaha's has been improved and now calibrates the sub. Also, Yamaha has great sound modes and great power from their top receivers. Now Pioneer, which i know well has MCACC which I think is good but hasn't been updated in years and still does not calibrate the sub, but they are powerhouses and still do sound great.
I am looking to improve my overall sound first, then features and power comes next, especially since I can always add an amp later. So what are the general thoughts on the receivers listed and tell me if you think I should add another like the Denon 4520 to my list?