The A7III is still the best choice for your average person. Small file sizes, no crop 4k, crazy ISO performance, super sharp 6k sensor, high dynamic range, great auto focus(right behind Canon).
100mm is twice as long as 50mm. The issue I have with mounting a long lens on a gimbal is movement. Gimbals are harder to control then simply holding something by hand. If you are just doing a static shot its fine but if you are trying to pan with the gimbal or move its really difficult.
-5 everything except hue and contrast at 0.
For the best straight out of camera look I'd recommend Natural. It has the nicest roll off and colors are pretty accurate. HLG is the best if you are going to edit heavy in post or want the most dynamic range. Cine-D for when you can't use HLG(8 bit recording).
I don't know about the title of this thread anymore though man. The A7SII is 4k with IBIS, it was like the two big features of the camera coming from the original A7S that only had 1080p and no IBIS.
I agree with the idea of this thread though I'd be more impressed if it was shot on a GH2 or something.
Prores RAW won't be worth it for everyone. But having the option to do 12 bit prores RAW is definitely a big plus. As can been seen with the Sony tests, it gives you more to work with in post, even though that translates to more work overall.
Though you can get internal log with custom profiles, which is a plus for me. The next generation Nikon and the A7SIII will be interesting. Panasonic's release in March could be interesting too though I am thinking they'll just drop the ball on auto focus.