There are lots threads (here and elsewhere) regarding image quality (mostly softness related) when using Canon's DPP. At this time, there really doesn't seem to be a way to properly generate a sharp image from a CR2 captured with the 5DM3.
I find it hard to believe that Canon would put out a product that isn't as sharp as the one it replaces. They must have done substantial testing with the Camera. I believe the issue is with the software, not the sensor or camera.
How did Canon process the images?