1D Mark III? How many customers did Canon loose while realizing their support was vital?
At any rate, nowadays, the cameras are so good across the board. Pixel-peeping has always, and will always get you nowhere. Focus on what's in front of the lens! Take your favorite pics you can think of. Is the camera in the frame? Is it part of the shot? Who cares if it was shot with a 1DX or D4S?
Man, and it took me years to realize that so I'm not faulting anyone. GAS is terrible, and the technology aspect of it all draws you in to comparing this crap. Try not to and just take good pictures.
I'm with you on this one. The best portraits can be taken with cameras from 5 years afo, so when I put it in that perspective for myself, I don't get so worried about the little less noise Nikon and Sony have over Canon.