I currently have the Nikon (full frame and DX) and the Fuji and for travel if I really want to bring all the lenses that I want the Nikon becomes quite cumbersome.
Fuji is more manageable but I would like something more weather resistant if possible, particularly on the zoom side (I'm not that impressed by the 18-135) and with even less weight and bulk. The primes are mostly very nice but I have to take many to cover same ranges and I am somehow lazy (either to walk and change perspective or change the lenses as often as I would like).
I keep thinking about the m43 as an alternative for light travel (family or hiking) and so far I was put off by the m43 noise even at lower iso and lack of a perfect camera

(currently the E-M5 II has the brains and the E-M1 has the body). I probably could live with the noise especially as I would shoot mostly at lower isos, landscapes in particularly with or without tripod.
The reason why I'm suddenly more interested is because I had a friend with a GX8 and an Oly 12-40 2.8 and I've been pleasantly surprised by how small and light the zoom was, for a wethersealed zoom that is.
GX8 left me unimpressed, grip is larger but handling feels more awkward compared to the X-T1 and it's probably the same size.
I would get the E-M5 II with the Oly 12-40 2.8 and the Pana 35-100 2.8 and maybe the 7-14 2.8, plus a couple of primes. The Pana zooms because they are much lighter without a large loss in IQ and this move is for lower weight and bulk. The Pana also has nice sales until tomorrow.
Compared to Fuji I would be on plus for landscapes (more DOF for the same ISO) and for any stationary opportunities that would benefit from more DOF. I would lose the lower light higher shutter needed opportunities (larger sensor and faster lenses on the Fuji side) as well the less DOF situations.
I have to calculate exactly how much weight I would save.
So after this long digression the question is for those who used both how do they feel they compare and if the above rationale makes sense?
Thanks