A reader from my website asked me about the differences between various Mamiya cameras (for film) and I was wondering if you guys could help me come up with some categories to compare the cameras by. So far, I have a list of cameras that includes:

645DF
645AFDiii
645AFDii
645AFDi
645AF
645 Pro TL
645 Super
M645 1000s
645 Pro
645 E Pro
645 Pro SV Pack (which apparently is a thing?)
M645
M645J

I know a couple of these, especially the M645's only have minor differences, but I was wondering if you guys could help me brainstorm some categories for me to put into an excel sheet and then list the various traits of the cameras.

Also any help added cameras / or sources of information would be appreciated, I have found most of them via B&H used pages.

Thanks!