I'm back in the Canon camp! I picked up a 6D refurb and am very excited about this camera. I had a D600 briefly in Dec. last year but returned it after fighting the shutter oil issue. I thought the 6D was going to be inferior to the D600's AF but I'm am impressed with the speed and accuracy of the 6D. I just wanted to share this shot. I was blown away at how clean it is at ISO 8000 in RAW with NO noise reduction. I just converted it in LR4. The auto WB is pretty good and the skin tones look great.