For all the love the 1dc got in this, I’m surprised the c70 isn’t mentioned. It feels more like a 1DC upgrade given its been nearly 10 years than the incremental updates of the 1dx III.
C70 is the only DSLR body style that feels like they want you to use it for video. Permanently strap that .71x adapter on there and you’ve got a full frame look with decent DPAF, useable digital IS, flip screen, unlimited recording, ridiculous dynamic range with clean shadows and better colors than the 1dx III. I like the 10bit HEVC modes for space savings.