Who were the top 10/top 5 greatest 1-punch KO artists of all time?

Maybe so, but I feel that in any comparison of one punch KO power quality of opposition must be factored in. Otherwise, people like Breidis Prescott would be lauded as amongst the greatest punchers in history simply because he rolled over a few 'Mexican minesweepers' as Nigel Benn used to call them.

Jackson did wobble McCallum which is very noteworthy - had he stopped him Jackson would have possibly been No 1. Jackson undoubtedly belongs on the list, but I feel he is slightly overrated.

 

Zarate