Trying to simplify and want to pick a Nikon FF body to use exclusively for portraits with a 105 lens. I don't care about age, megapixels, or video. The D2X would be my first choice, but it is a little too old. Of the subsequent full framers does one stand out in particular as doing the best with skin tones and gradations? I use a D810 right now, and it's fine, but maybe a little too clinical.