He played in finals football in for fifteen consecutive seasons from 1951. His appearance in eleven Grand Finals is an Australian rugby league record. His victory statistic of ten consecutive first-grade premierships is a world record in rugby league and arguably a world class achievement in top-grade team sport.
Getting silly - Johns was too soon imo, and several on the list achieved much more than he did.
I prefer a Hall of Fame - keeping things exclusive, but then people like Sterling, who for some reason it seems will never be an 'immortal' would be a lock - along the truly great players - the immortal concept is about selling magazines, if they broadened it, and took a look at the voting approach baseball uses, they could come up with something special - a residence/museum, with plaques, history...