Just because he hits hard doesn't make him the best fighter of all time. Tyson had no heart, and still has no heart. Once you cracked him a few times he would mentally fold. If the name of this thread was "The hardest puncher of all time" then you could make an argument for Tyson. The best fighter of all time, (in this case boxer) would not only need punching power, but boxing ability, stamina, a chin/heart and solid wins against top primed fighters, Tyson has almost none of those. Make this argument on any boxing forum and you will be ridiculed. Anyone who is more than a casual boxing fan would agree Tyson is not the best fighter of all time.