1. Fujifilm uses sony sensors with their own colour array over it. I'm assuming fuji would use the large cmos sony with their own bits and pieces on it for a mf camera.
Yes, but the sensor they are using is a old iteration of Sony's popular 16mp APS-C design. A new color array does not a better sensor make. I used to own both the X2, NEX-6 and X-E1. There is no fundamental difference between processing latitude and high iso performance between these bodies. The Fuji does not have any color noise, but also loses progressively more detail upwards of iso 800.
2. Sony has sensor experience and electronics experience. They don't have camera experience, and it shows. Their cameras are a gobbledygook software and hardware mismatches and ergonomic wtfs. Fuji on the other hand has decades of experience with camera design, ergonomics and lens design.
Really? Minolta's camera tradition is every bit as old as Fujifilm. Throw Konica into the mix and Sony's camera legacy is even older than Fujifilm.
There is ZERO compatibility between older Fuji equipment and the X cameras. Sony provides backwards compatibility that ensures the proper function of every Minolta lens on the A7r, via an adapter with motor-drive AF, dual-system focusing and in-body aperture control(for lenses that apply).
In this regard only Nikon can compete with Sony, and I'll give them a 95 instead of the 100 Sony deserves because they did drop certain vital function supports for some of their older glass(not many, admittedly). The DF is perfectly backwards compatible, but that's one body verses Sony's entire Alpha system.
3. Sonys lenses suck. They have two good lenses and both are zeiss's. Fujifilm has some of the best lenses out of anyone, and at an affordable price.
The A-mount has some of the finest optics ever created. The 85mm f1.4 Zeiss can compete on equal grounds with any of Nikon, Canon or Pentax's similar offerings. Sony's 50mm planar is sharper than all three of Canon's EF 50mm primes, and IMO has better color rendition and comparable bokeh to the 50mm f1.2L. The 135mm STF delivers portraits that cannot be matched by any other lens, in fact it makes my 90mm APO-summicron look like a single-coated Jupiter with big flares and ugly OOF...
I will also point you to excellent Sony optics such as the 24mm f2 ZA and 135mm f1.8. Maybe Zeiss had a hand in building these lenses, maybe not. But they are Sony glass, and world-class without any doubt.
4. I don't agree with your watercolors consensus sorry. x-trans is different to bayer, and in some situations it isn't quite as pixel sharp yes. But it makes up for it in other areas like colour, smoothness and high ISO capability. Oh, and the cameras themselves don't suck.
I sold my X-E1 because I couldn't get the files to look right (sharp). I've been using Photoshop since CS3, and tried pretty much everything on the Fuji files. I bought a copy of Capture One, updated to the latest ACR, nothing really worked, and I found myself with files that look beautiful on a screen but could not be printed as large as files from my Sony bodies.
I'm a Fuji user since the X100, and also briefly owned a X-E2 before I decided to get rid of the system for good, yet I still use the NEX-7 I bought in 2011 on a daily basis. I don't think the NEX-7 is necessarily a better camera, and I know plenty of people who will prefer Fuji bodies to it, but
in no ways do the NEX-7 (or NEX-6) suck.
I wanted to love Fuji. The design looks nice with my M lenses. I prefer a thumbs up to Sony's rubberized grip. The Jpegs are more presentable with Fuji, and WB doesn't creep to the yellow side in low light. But at the end of the day, I found Sony's various fault manageable but not Fuji's. Other may of course feel differently, but neither brand is inherently better or worse.