[JJ_SO]

I think Fuji have got a better balance in terms of lens size. I'm currently trying to decide between a fuji or mft system. i'm on the fence with the 100-400s and gh4 or x-t2. The mft system would actually work out a fair bit lighter and smaller, plus I can buy a gh4 at a much reduced price. Another option would be  d7200 and 300mm F4 pf...decisions!

I don't have first hand experience with µ4/3 but I also would look closer to Panasonic's offers, if I still would have to decide. Why did I went Fuji? I admit, their PR department does a good job, several X-shooters are very convincing photogs.

 

Sensor size µ4/3 I found too small and constantly reading "lots of noise from the sensor" was also not attractive. Fuji has a lot of fast primes, their firmware upgrades were well-documented and the dials and wheels are a very good alternative to a top-display. Just a little bit too easy to move accidentally...

 

The X-E2 was my "cheap" beginners test run and once the face-/eye-detection nailed the sharpness, I was falling for it. It's still not always easy to get the right face in focus in a group and in low light, but I really like this "no danger"-appearance of these small yet performing systems. After discovering what capture One can do with actual X-E2 RAWs, I don't regret at all to be jumping into this mirrorless stuff.

 

Now, for the D7200 and 300/4 PF you should consider, there's still the issue of the VR not handling all shutter speeds well, OFF in daylight and ON in dawn can help, but it still has a nervous bokeh from time to time - sample will follow. However, I appreciate it's close-up distance of 1.4 m.