Anthony Joshua insists Andy Ruiz Jr isn’t the hardest puncher he’s faced, despite the Mexican-American handing him his first career defeat last year. His jab is a battering ram, and he throws powerful combinations with speed and precision. Ranking Contributors. Golovkin is certainly one of the top two or three punchers in boxing. As Tapology users create their own lists, the consensus rankings will update in real-time. We ranked the boxers here. But who else in today's game packs elite power? When we say these are the hardest hitters today, we are taking into consideration their knockout ratios and their ability to hurt opponents on a consistent basis. Why Wilder's the biggest puncher in boxing history: Jeff Powell's top ten heavyweight hitters with Bronze Bomber edging Iron Mike, only one Brit... and no place for Muhammad Ali! Deontay Wilder might be the hardest puncher in boxing history. Not every punch knocks their opponents down or out, but just … It’s unrealistic to expect all knockouts to result from one devastating punch as it usually takes a combination of them or a methodical beat down in the ring. For All Time Hardest Punchers, the …