By extension then, Armstrong the best cyclist, Johnson the best sprinter, etc...... but this is not necessarily true. There were non-cheating cyclists, sprinters, and baseball players.... we will never know how much of the performance gap was due to the juice. Perhaps not enough to be HOF-worthy? Would Armstrong win just 1 Tour de France? Were Bonds, Armstrong and Johnson simply the most efficient of the cheaters?
Only if you can answer these questions can you make a conclusion on who was the best. And these questions cannot be answered. Can you really conclude that a non-juiced Bonds would put up better career numbers than a non-juiced Griffey Jr?