Why not just go for the cheapest and easiest camera to use unless you yourself find one of the others can do something you want that the others cannot and reckon the disadvantages you have to put up with to get that are worthwhile?
At one end of the spectrum you can buy literally the minimum capability you absolutely must have (the least you can possible live with), and buy again if your needs/tastes/wants expand. At the other end of the spectrum you can buy the absolute best available regardless of how much you need/want its capabilities. Neither of those is an especially good approach unless you have extremely tight or extremely loose budget requirements.
I have seen
so many clients walk through the door having, in the last year or two, purchased several cameras in a row (e.g. 5D IV, followed by Nikon D850, followed by GFX) ready to buy a Phase One IQ3 100mp Trichromatic. Each time they stepped up, the time (research, learning curve, modifying bags to properly fit the gear etc) and money (the camera, lenses, accessories) that they spent on the previous camera system were largely wasted. Those customers would have been much better off jumping straight to the top camera. Of course, hindsight is 20/20 and the opposite can be true; we've had clients who bought an IQ3 100mp assuming that the most expensive camera is definitely the best fit when, for example, the IQ3 50mp would have been a better fit due to faster capture rates.
I think you should cooly and rationally evaluate your current needs, your current wants, your likely future needs, your likely future wants, and your absolute maximum budget, then cooly and rationally evaluate several cameras at different price points and see how each of them fill those current/future wants/needs. You don't want to overbuy. But you also don't want to underbuy or you'll likely end up buying twice (or more)!
Assuming you're in it for the photography, and not the gear, then you want to spend as little time learning gear as possible, and as much time creating images with that gear as possible. From that perspective getting the right gear (within your budget) that you can learn and use for the next several years of your wants/needs is smart.
