Nikon D600 vs. Canon 6D in Low Light?

you want to sell D600+24-70, get 5D3+24-70mk2 (twice as expensive as new D600+24-70) just because your are too lazy to clean your sensor?

Seriously?

There was a joke about a rich Russian, who bought a new Bentley when an ashtray in the old Bentley was full. You are on the way there.

Now seriously.

Each idiot can write that 6D 5D 1D is FULL TWO STOPS BETTER than D600 D800 D700 D300.

That is why we use credible Internet sites and reviewers.

Sample images are 1000*700px right? Downsized 6*times on the each side and 36times in MP count. What do you see there?

Download raw files and judge by yourself. And still be careful: iso3200 under a good lighting (flash or sunny day with correct colors) has nothing in common with iso3200 under poor light (candle, or even worse - gas discharge bulbs with 2-3 spectral lines instead of continuous spectrum).