first of all to judge any star his stardom reach or star value there is only criteria,
give same genre of films to many stars and on whom the canvas looks biggest will be the biggest star,
example -
same type of film cdi and dangal and dangal canvas is way way bigger than cdi becuae it cast a bigger star,
period film mangal pandy > veer> Asoka in terms of scale and canvas
so amir>salman>srk
action film canvas dhoom3>ett>don2
so bigger the canvas bigger the stardom
next toh cavas is way bigger than race 3 or tzh