There are several reasons to choose Fuji.
- how the cameras work and physically operate. Depending on your age, you probably learned on something that felt the same in your hand. Yes, there's a big shift in how you use an electronic viewfinder around focus and exposure, but it's not difficult to pick up, in many ways an improvement over DSLRs.
- the lenses which are stellar, I would definitely add a prime to your wishlist. The 35mm 1.4 or the newer f2 are phenomenal lenses.
- the JPEGs, yep, JPEGs you actually use. A good deal to admire in how the Fuji engineers bake in old film styles into their JPEG engine.
But overall, you pick Fuji to fall in love again, it's rekindles in many ways why you got into photography. The camera nerd in me finds many things to admire in Sony's A series but Fuji got my money.
I use Capture One as my main processor, creative editor and photo manager. I do also use Iridient Developer for the occasional detailed image, it's also very good. I've printed up to 40" wide and the detail was phenomenal. It's worth spending time on the sharpness and detail settings to finesse this for the X-Trans sensor.