Currently I'd say Nonito, Wlad, AA, and Segura. Of all time the ones that left an impression on me were Joe Louis, Bob Foster, Rocky Marciano, and a prime 80's Iron Mike. Brutal, explosive power.
Vladimir Klitschko and Vitali Klitschko have the highest knockout ratios of heavyweight history, Vitali #1!!!!!!!
Archie Moore was an excellent puncher, but many people seems to forget him:good.. Atleast i havent seen many debates about him, and his name rarely pops up in any P4P discussions..
Abraham is explosive. He is probably the one with the biggest p4p KO punch. Recent fights just show that a big punch alone isnt enough in the biggest fights.
You can say what you want but AA is a beast when it comes to power. So AA P4P. :good I hope he will use his 1 punch KO power a few times again :-(
acrtive ill go with Randlall Bailey Nonito Donnaire Yurikois Gamboa Giovanni Segura Alfredo Angulo Arthur Abraham Wladimir Kltschko Marcos Maidana Juan M Lopez Victor Ortiz= Johnny Gonzales Since ive been a fan (late 7s) Julian Jackson Earnie Shavers Danny Lopez Alexis Arguello Gerald Mccellan THomas Hearns Pipino Cuevas Alfonso Zamora Edwin Rosario Michael Moore (at LH) Jose L Lopez Mike Tyson Naseemm Hamed Andy Gannigan John Mugabi Young Oscar Delahoya Danny Romero (112,115) Antwun Echols Carlos Zarate Felix Triinidad (WW,JM) Jaime Garza Wilfredo Gomez DIego Corrales Michael SPinks Chiquita Gonzalez Donald Curry (at WW) Ezzar sellars (at Cw) Kaosai Galazy Razor Ruddock Baby Canizalez Julain Letterlough Michael Carbajal Gerry Cooney Bonecrusher Smith Caveman Lee Jose L Ramirez Juan Roldan Wilfredo Vasquez 118 Mark Johnson (112,115) Rene Arredondo Victor Callejas Tony Baltazar Bazooka Limon Bobby Chacon Acelioo Freitas (jL)