I think highly of his career, but I probably do not rank him as high as most on my all time Heavyweight list.
Why would the bolded be the case? Boxers wouldn't have taken more PED's after the round reduction, they would have just taken different PEDs. The amount they took would have only changed based on availability from era to era. In other words, the 80's wasn't juicy because of a round reduction, the 80's was juicy because it was the 80's. That wasn't a result of a boxing rule at all, that was the result of a worldwide sports phenomenon. If it was still 15 rounds they would have used less steroids and other cardio enhancing PED's, not less PED's.