Better Wilder's right or Frazier' s left

[BoxingOutlaw]

Or name some body with a more dangerous 1 shot punch.

[McNulty]

Or name some body with a more dangerous 1 shot punch.

Plenty of fighters. I don't rank Frazier anywhere near the top of power punchers. The left hook he hit Ali with wasn't even that nice. It was the timing that did the work. Ali got caught with a left hook while throwing a right uppercut in the 15th round so you got to big factor's there:

1. Counterpunch
2. Exhaustion

Uppercut vs Counter Left Hook

Similar thing with Holyfield vs Douglas. Douglas got caught with a right hand in the middle of an over-extended uppercut.

Uppercut vs Counter Right