I am in the process of ditching my Canon gear after several decades of Canon, and switching to Fujifilm. I have shot with Canon 5D cameras since the original 5D came out, upgrading along the way with each new body release (about a year or two after each release) and building a collection of Canon and Zeiss lenses. It took over a year to finally commit to the idea of switching. I am currently waiting on some Fujinon lenses to come back into stock with my local camera shop and then I will trade everything in and make the switch.
I have been doing a lot of research. The modern Fuji X cameras all share the same sensor more or less - the 24MP x-trans - and the same processor. Each variation is designed to fit different shooting styles and needs, etc. The newest X camera , the X-H1, has IBIS and some other things that appeal to my needs, so I will go with that over the X-T2. The X-T2 just got a firmware upgrade that increases its already terrific capabilities. The idea is to go with what fits you best and, if you want to commit to the Fujifilm system, invest in lenses for the long term. Recently I have seen the X-T2 on sale for a few hundred dollars off of the regular price (for example, $200 off at B&H now for $1399). You can get the camera body, vertical grip and the kit lens for $2229 ($200 off).
Now might be the time to take advantage of deals if the Fujifilm system is what you really want to invest in for the switch to mirrorless. You may also want to take a look at the X-E3 and the X-T20 - if they fit your needs, they cost even less.
Good luck!
kirk