I think that over the last 15-20 years we have seen more boxer-puncher and boxers. Less brawler types whose purpose was to wear you out. Partially due to the changes that came after 15 rounders were eliminated, partially due to seeing the success of boxer and boxer-punchers. I think the OPs question would have 100 answers quickly 20 years ago. But it is harder today. I assume Mickey Ward has some fights he was losing rounds but breaking the opponent down. But I can't recall them.