You could make the same argument with Wonder Woman. Mostly known through Lynda Carter's portrayal in the 70s.
She's still considered an A-lister and is considered the "trinity" for DC.
NOW THAT ALL SAID?
there is a DEEP loyal sub culture of comic book heads...
that is sizable that REALLY made that sh*t COOL
So PLEASE understand
Fantastic Four Doctor Strange Ghost Rider and Howard the Duck Shang Chi and later X- Men etc
are in a VERY VERY VERY special place in American (and world) popular culture that there may never be a proper metric to measure.