allegretto, I mostly used aperture priority on the Olympus and set the ISO manually. The exposure compensation dial adjusted the shutter speed. When shooting high contrast scenes I would change to manual mode and set everything.
When handling the 6D and exploring the features I did also find the camera to be very intuitive. Much more so than the Nikon, which was disappointing. I expected more from Nikon on the usability side of things, but then I realised how much they don't put in because, I imagine, of marketing and creating demand and movement of customers upward within their model hierarchy.
Seeing this comes back to the whole reason for this thread. Looking at not only the camera and system, but the commitment to bringing good design to customers that exists in the company ethos, or not - as in the case of Nikon to some degree.
jjj, that is pretty cool that Canon had something like eye tracking for AF point placement. I don't see why they couldn't bring it back when they finally go mirrorless: hold down the AF button to engage eye tracking and bring up the focus point that moves to where you are looking. The camera focuses and then you press the shutter button to take the image.