I think people are getting far too deep here...
Until the late 80s apart from the odd end of year list and Boxing News; pound for pound was rarely spoken of other than the given that Robinson was the best ever pound for pound.
After the sweet one passed away in 89 and the Heavies were dominated by this bloke who's name I forget
; pound for pound began to rear its head. At first to find a living successor to Robinson (I think The Ring did an article 'Is Charley Burley, the best living pound for pound fighter?'
); and then to decide who was the best amongst the current crop.