The criteria is probably their rating. Since they use the ELO system, each game gives or loses points. So the ratings are a good measure in how good you are over time and meeting multiple opponents.
And Carlsen absolutely dominates the others, and have been the top rated player continuously for a decade. So no questions about who is the best, WC title or not.
Carlsen is right now 98 points above Nepo, the challenger, which is an insane difference.
And Carlsen absolutely dominates the others, and have been the top rated player continuously for a decade. So no questions about who is the best, WC title or not.
Carlsen is right now 98 points above Nepo, the challenger, which is an insane difference.