Long time no "see". Personally, I find it very interesting the conservative ISO ratings that Nikon uses, which only goes to 6400 on two FX cams and twelve-eight on the big camera.
It's pretty clear to me anyways, that D4 beats 1D X, D800 and especially E beats 5Diii, and I'll wager D600 will beat the 6d DxOMark will have the last word on this. We all know Nikon kicks it on ISO at every price point, regardless of what ISO claims the other camera companies belch out (aside from FujiFilm). Nikon is a good company in my books. Sorry for the Canon bashing, times like this really bring it out in me due to all the internet hyperbole.
BTW I like the look of the D600 in the OP, very nice form factor.