Awards, nominations and Hall of Fame status.
How it is scored
Calculated by script from the award arrays on each performer record. A Hall of Fame induction is the heaviest single signal, then a Performer of the Year win, then a category win, then any other competitive win, then a nomination at roughly a quarter weight. Lifetime Achievement honours are scored as ordinary wins rather than as Performer of the Year, because Hall of Fame induction already captures career recognition and double-counting it visibly distorted an earlier edition of our all-time list.
Awards are the only independently-audited quality signal this industry produces. They are voted by peers and press, their archives are public, and they are the one input a reader can check without taking our word for anything.