This will be a lengthy process, but I think everyone will want to see themselves at the top.
The ranking will be in the form of a football table + win percentage.
As an addition, there will be a list of each player's victories over strong opponents (achievement).
The calculation of points will be complex.
POINTS will depend on who you play, of course, and how often + games with the same opponents will be valued less and less each time (this probably won't apply to strong opponents, we'll see).
I don't see any suggestions, so I'll have to make decisions on my own.
and accordingly, unforeseen issues will have to be addressed during the process, not beforehand.