As professional golfer Lee Trevino used to say when people asked him about his clubs, it's not the arrow. It's the Indian.
Of course, with cameras, it's also the experience of using them. Many times, that is the defining characteristic.
I have the Fuji X100s (delightful!), the XE-1, XE-2, 14mm, 23mm, 35mm, 60mm macro, and 55-200 (all Fujis). Plus adaptors which allow me to use Nikon, Olympus, and Leica lenses on the Fuji bodies. Also have the Sony A7ii.
The Fuji glass seems to be quite good. The bodies have been a disappointment. VERY slow AF. I often go manual and use focus peaking. I thought I was going to sell all the Nikon gear, but after more than a year of shooting the Fujis, I'm back to Nikons, and just bought the D810 and four Zeiss lenses. (shrug) Probably will sell all the Fuji stuff other than the X100s.
My only suggestion is to not sell anything. Run two systems for a few months.