Excellent write up, and it matches my experience with my D800 and 5D MK III sensors. The D800 sensor is supurb at low ISO settinngs below 400, while my 5D MK III pulls away at high ISO settings.
Since I do mostly extreme low light photography, I was disappointed with the D800 performance in low light, but amazed when I used ISO 100.
The thing that is not touched on, are the aspects of a camera system.
Service (time and quality for repairs)
Lens quality and available focal lengths that match sensor resolution.
There are other personal preference things like ergonomics, ease of use which tend to vary with user background.
He did touch on the issues with editing of large raw files, but a lot of people do not know exactly how to quantify this. I found it taking multiple times to render a low light D800 image compared to a 5D MK II image, and running NR or other computation intensive processes was very slow when you were trying to process 500 or more images.