pep. he has a lot of KOs sure but only something like 18% of his total fights. after that slapsie rosenbloom
I don't think Whitaker belongs in this discussion, because he clearly punched with authority, but his style just didn't lend itself to a lot of knockouts. Compared to someone like Rosenbloom, Malinaggi, or Looche, he did pack a very respectable punch.