I have no idea what you're trying to ask for here, so I'll just cover the points that I can parse through from your post. I'm currently a Sony shooter using the a6000 with plans of adding an a7s once my Xmas bonus comes in.
1. Video quality is damn good, although rendering video can be a pain since it does take quite a bit of computing power to process the codec. I'm running an overclocked i5 with 32gb of ram and using hardware acceleration with a GTX970 and a 12-minute video across 2 cameras with effects/colorgrading/noise reduction/sharpening/etc took a good 6 hours to render and export. Haven't had a chance to work with much XAVC-S/S-LOG2 yet, but from what I can tell, its fantastic if you know what you're doing. If you're new to cinematic color grading and come from shooting video from non-cinema grade cameras (such as the d600, 5d3, ENG style camcorders, etc), its entirely overkill. If not, you might find issue in the slight loss quality in the color gradations vs working from native prores footage (since it is only 8-bit 422@50mbps), but its perfectly usable with some work.
2. Image quality is pretty damn good on the sensor level. All the dynamic range and detail you've come to expect is there, the question of megapixels doesn't concern me too much since I don't need to crop tiny portions of my frame. I came from shooting a K-x, so 12 megapixels seems entirely adequate for most situations. The 24mp on the a6000 is nice to have and the sensor performs well, but I was just as happy with the performance from the 16mp on the K-5 I used to shoot.
3. When shooting crop, you've got plenty of good options as far as fast glass goes. There's the lovely zeiss 24mm f/2, the stabilized 35mm f/1.8 and 50mm f/1.8, and plenty of options for adapting lenses , additionally with autofocus if you go A mount or EF mount. AF on adapted lenses works, but don't expect to shoot sports with them. As for full frame, remember that its a relatively new mount. Like with crop, you have plenty of options when adapting other lenses, but native first party lens offerings are limited to the 16-35, 24-70, and 70-200 f/4 zooms, the zeiss 35mm f/2.8 and zeiss 50mm f/1.8. as well as the upcoming 28-135 f/4 cinema zoom (which I definitely lust over)
4. The small size of the sony ecosystem was actually a happy change for me. I came from dual-wielding gripped 5D's and K-5's with big/fast glass, so the weight savings were quite welcome. I've never found the number of controls lacking in relation to the K-5, and while I do miss the AF joystick from the 5D is missed at times, I've never found it to really slow me down since I'd given up freelance sports shooting years ago. There's enough buttons on the camera for every function I find essential and the quick menu on the interface easily holds the functions I use occasionally. The EVF is actually quite good, so I do not miss my pentaprism at all. That said, nothing compares to a good old medium format viewfinder, so maybe I set myself up to not expect too much
Hope this helps!