@Ankorwat. - Please don't waste everybody's time by writing what everybody here already knows: Nikon (Sony) sensors have more dynamic range right now.
I don't think that old bit information is going to cause any Canon users reading this forum to jump ship. Lets all go take some pictures and let this topic die!
Bodies: 5DIII, 6D, EOS-M
Lenses: 35mm f/2.0 IS, 50mm STM, 100mm f/2.8L IS Macro, 135mm f/2.0L, 300mm f/2.8L II IS, 16-35mm f/4L IS, 24-70mm f/2.8L II, 70-200mm f/2.8LIS II 600EX-RT (x3)