I own the Sony A7RII , the Sony A6300, a bunch of Sony glass and just acquired a Fuji X-T2.
Why on earth did I buy the Fuji if I already had two top of the line cameras? Sony is all about tech but there's no life to them. Fantastic image capturing devices but average cameras. I just hate the button layouts and rear dials.
I took a gamble on the X-T2, I had owned an X100T previously so I knew a little about how they feel. I just missed that feeling. I much prefer the X-T2 to my Sony cameras. I just enjoy using it more. I recently picked up the Fuji 23mm f2 and I just love it.
I also own the Sony Zeiss 24mm f1.8 (a near $1000 35mm APSC equiv prime) and I don't think it can touch the Fuji 23mm in terms of performance and rendering. The 24mm is the most over priced lens i've ever bought (lucky I only paid $550 for it). Its a nice lens, but worth only $500 tops.
I've come to realize, all the high tech in the world does not make a great camera. The enjoyment of shooting is important to me, it may not be as much to you though.
Bottom line , from a serious Sony owner .. I feel the X-T2 is in another class. The lens line up, the body, handling and "feel" . Both are fantastic cameras but I feel they will attract different users.
All cameras out today are excellent. It should really just be what connects with you the most.
I actually blogged about this recently regarding the A7RII
http://fzero.io/the-sony-a7rii-a-year-later/