R^2.0, ACS, K/D, or something else?
to be honest it depends on the player
if you’re looking at duelists, ACS/FKFD matters a lot, for players like controllers and initiators, assists matter a lot, etc.
vlr rating is a decent metric to look at to see if someone did well, as is K/D, but it isn’t perfect. the best way to judge a player is to just look at how they play