I've had the D800E for about 8 months. Images quality is very good with a wide range of subjects and shooting conditions. Moire is very rare with natural subjects and even for events I have not seen moire.
The classic set of lenses would be: Nikon 14-24 Nikon 24-70 Nikon 70-200 VR II (not the earlier VR version)
There are alternative lenses depending on your needs, but these are top of the line in terms of professional quality zoom lenses.
You should have plenty of image quality for 16x20 prints and the low noise and high resolution means images hold up well with cropping to large prints.
Given that you are comparing the camera to images from a View camera, I would maximize image quality with the D800E rather than the D800 or D600 (which are probably perfectly fine).