Who are the top 5 punchers in the sport?

[Champ Wilder]

GGG
Kovalev
Wilder
Beterbiev
Joshua

[rogdogx]

I come very close to agreeing with your list 100% but not quite. My list is 1 Joshua 2 Golovkin in a tie with Joshua for 1st place. 3 Kovalev 4 Beterbiev 5 Stevenson 6 Spence. I rank Beterbiev higher than Stevenson because he has terrific power in both hands. Stevenson has a great left hand. His right is powerful but not exceptionally powerful. Wilder and Ortiz are both big punchers but fall just short of making my top 10 hardest puncher list.

I admit I'm probably ranking Beterbiev lower because he only has ten pro fights. He's the goods though. The Campillo and Cloud fights were impressive. I think Beterbiev could very well be in the midst of an impressive KO run.

[KingHippo]

Do you mean who punches harder or who's better at knocking out his opponents?