The main thing I learned from doing these tests is that both cameras have strengths and weaknesses. The thing that drove me crazy on the D600 was having to exit Live View to change my aperture (?!?!), the sensor oil problem and high ISO noise were also bothersome, those things said, if Nikon can fix them, it really is a nice system.
The 6D is better than the general consensus. I also think the 9 cross type squares on the D600 compared to the 6D are a wash, simply because those 9 squares on the D600 are all in the center, not much difference in coverage than Canons 1 central square.
Ive read so many reviews that the 6D cannot be used for shoot sports, which just isn't true. The D600 is marginally better (about 10-15% more accurate) for subjects moving towards and away from the camera, but that doesn't mean the 6D wont work. Its works fine.
The 6D is really a low light specialist for its focusing and high ISO noise. As a wedding photographer, I would much rather have the 6D in my bag.
To answer Badger- the Crash Course Camera series is primarily aimed at beginning and intermediate photographers wanting to learn their new cameras. I assume the viewer knows nothing about either photography or their camera and try to get them shooting on an advanced level by the end of the DVD. (not an easy task). I spend about 40 minutes on the introduction to video, basic setup, basic shooting, terminology, workflow, why certain frame rates, etc. Nothing too fancy, but enough to help a pure beginner get started.
For in depth knowledge on DSLR video shooting, Dave Dugdale has a very solid website called www.learningdslrvideo.com
and has videos on the T4i and T3i.