Nice comparison...
Only slightly related, I'm currently trying to decide between a GH3, a comparable Canon (60D?) and--apparently, now--a D5200.
I have access to a couple of Nikon APS-C lenses, none of which is especially good, as well as the Nikkor AF 50mm F/1.8D. Other than that not really tied to particular mount type.
This is largely for video but i also need to able to take professional-looking stills.
Suggestions?