Who would come out on top in a 'fantasy' fight between Sugar Ray Leonard versus Archie Moore ?

Sugar Ray Leonard is one of the greatest boxers of all time. He had way too many skills not to beat Archie Moore.

Archie Moore was a man who never stopped fighting. He was near 40 when he was in his prime. It took Rocky Marciano 9 rounds to knock this man out. I think that he would be able to knock out Leonard. Leonard is the best fighter of his time's weight class, but I don't think that speed is going to help Leonard against Archie Moore.