The two greatest of all time.
Obviously, Usain will go down as the GOAT but Ben was phenomenal for his time. His legend is ruined by politics. Yes he used performance enhancing drugs but so did 6 of the 8 runners in that final. He was singled out because Carl Lewis was who the money was behind.
I have no doubt that Usain also used performance enhancing drugs too, most of them do. But he was too valuable to money makers. It's disgusting what they did to Ben.