I've written this on the other side but the question is never one of who is the top but rather what are the METRICS, CRITERIA and weightings of such to determine "topness"
let's take for a very simplified example - album sales
obviously the more album sales one has the better - right?
but that's only half the picture
do we go by total album sales?
album sales per comeback?
what of digipacks?
what about using total sales generated by album sales
what if group one has 4 members vs group 2 who has 8 - technically in order for group 2 to have as much profit individually (assuming ceteris paribus) they would have to sell twice as much as group 1
etc etc