Can any of you persuade me to keep one of these (and if so, which one would it be?).
Actually you need to persuade yourself in either direction. We could wax eloquent for pages of posts, but in the end it all comes down to you. Take all three out at the same time, compare them and take some photos. As long as you do not take light readings of the sky with any of them, they should be about the same and also be correct.
Warning!! Handling a Hasselblad can be harmful to your financial well being!
Nothing beats a great piece of glass!
I leave the digital work for the urologists and proctologists.