Man, don’t forget to invite 
@3db and 
@M Code to the party! 
Well, like I said before, I’ve given Denon 20 years of trial. I’ve only used Yamaha for 2 years, if we don’t include my awesome Yamaha Stereo Mixer for Karaoke. 
Service: from what I’ve seen, Yamaha is way better.
Heat: Yamaha is way better.
WiFi Remote: Yamaha is 100% better.
WiFi Music Streaming from AirPlay: Yamaha is way better.
HDMI 2.0 compatibility: Yamaha is way better
Reliability: Only time will tell