It’s more than hard; it’s maybe impossible . To really make a determination, you need all else equal. Not just the same sensor; you need the same downstream electronics running the same code (to insure is no cooking of the file, or if there is cooking that is the consistent), same set up, same lighting, same charts, same converter, etc. Crossing brands, all bets are off.
The fact that two separate sensors with the same MP but otherwise different AA configurations, downstream electronics, lenses, etc yielded identical extinction resolutions tells us that Nyquist is the limiting factor. There should have been a difference yet there wasn't meaning one factor sits above the others.