[felix]

I took the X-T1 out last weekend with the 14mm, 23mm, and 40-150.  The 14 and 23 are alright, I never even used the 40-150.  The best review I can really give is:

 

* terrible ergonomics - hand crampingly small body, bad grip. 

* Lots of strange UX quirks

* Excellent picture quality for most scenes

* Weak picture quality in scenes with dense fine detail or large areas of the color green

* Decently good lenses

* far overpriced and overhyped

 

As an X-T1 owner, I agree on the decent lenses and the terrible grip (and the ridiculous prices for Fuji's add-on grips just make it worse...), but I disagree with the rest of your points   The image quality issues with foliage and fine detail are mostly a matter of which RAW converter is used. Adobe is really sh*tty for Fuji RAWs unfortunately... Capture One is way better, but also has its quirks. 

Overall, I would not suggest Fuji if weight saving is the #1 priority, because most of the lenses are not that small and light. 

 

I would suggest the following:

E-M5II or maybe even E-M10

Oly 12-40mm - it does not have a lot of reach, but image quality is very good and it focuses quite close, too

Oly 60mm - only available "long" macro for the system

Samyang 7.5/3.5 - wider than the Oly body cap lens and probably better IQ

 

With the E-M5II, total cost would amount to ~2500€ here in Germany. Maybe a bit more if you need an additional grip for the body. 

 

The Canon G3X option would be significantly cheaper