Frazier was known to have the best left hook in the history of heavyweight boxing, but I'll disagree with you and say that Frazier had more of a right hand then most gave him credit for. He landed some pretty hard right hands against Ali in the FOTC II rematch that made Ali back-up from what I remember. This is partly the reason why Ali mugged and hugged, pushing Frazier's head down repeatedly during the entire fight. Ali, expecting more left hooks, wasn't prepared for the right hand, just like Jerry Quarry in his second fight with Frazier. Both men got rocked by solid right hands from Frazier.