I am not a fan of the Canon EOS-6D although this camera can be a good value for those who want to enter the world of full frame photography but does not have enough funds to buy a better camera. Read my earlier post on the Canon EOS-5D Mk III vs. EOS-6D comparison and finally, the Nikon D600 is added in for the three way comparison.
You can read my guide to the best Canon cameras and see my works on MichaelDanielHo.com