Holmes cleaned out a division that was just as strong as the one Louis/Marciano/Tyson did. Its true he didn't have a great HW to fight but he was a phenom of a pure boxer who dominated for a long time. Plus the Spinks fights are always viewed as a one sided win for Mike. Those fights were really close and the second fight was widely considered a terrible decision. So the fact that he fought two very close fights with one of top 3 cruisers of all time at the age of 35 isn't that much of a slight. Much like Louis and Marciano you can't blame Holmes for not having a great div to fight in, but like the other two you have to praise him for cleaning it out and reigning for so long. I put the guy behind Jack Johnson, Ali, Louis and Foreman as far as ATG scale.