It's true, the X-T2 and the X-Pro 2 could be in this spot for image quality interchangeably – after all, most recent Fuji bodies share the same sensor – but the subtleties of this camera make it a formidable stills camera.
You can read a full review here, but here's what you need to know: Fuji designed this camera as an updated rangefinder – complete with an optical viewfinder, helpful for street, wildlife, or sports photography – and everything from the ergonomics to the image output is wonderful.
With exceptional image quality and latitude in your RAW files, you'll never feel like this camera can't handle what you're trying to shoot. It's tactile, portable, and empowering. Not only can you take it anywhere, but you'll actually want to.
Note that you can also shoot 4K video on the X-Pro 2, but without the flat Eterna profile.
If image quality is important to you and you enjoy the 'rangefinder' look and feel, this is the camera for you.