Canon Mirrorless Camera Full Frame

So taking into considering full range of categories and shooting stills and video, so entire dslr or mirrorless system as a whole, along with selection/prices of lenses, I need to give it up to Nikon D850 for king of all. There are some better values in Canon's lineup of lenses (also taking third party lenses into consideration), but not much so. It's a difficult choice and there are many pros and cons to each system when comparing them all, but ...