The Juan Manuel Marquez straight right has to be worthy of consideration after the Pacquiao KO.
I am not sure if David Tua is still active, but his left hook has to be at least equal to that of Donaire's if he is.
Those short compact counter hooks that Bernard Hopkins lands seem to keep the old man ahead of a lot of younger opponents, Bernard's inside game reminds me a little of Pernell Whitaker,
In order...Taking into consideration power as well...Mayweather's right hand would be #1 if he put more power into it...but he plays it safe and dosent go for gold when he throws it...
If it aint knocking niqqas out how can it be the best punch? I have it third
1) Guillermo Rigondieux's straight left to the body and head
2) Pacquiao's straight left
3) Mayweather's straight right
4) Donaires left hook
5) Both Klitschko's jab
Left hook - Use to be Roy Jones and Mike Tyson, but now it's Nonito donaire and Andre Ward left that he used of Chad Dawson.
Right punch - Use to be Floyd Mayweather but...
Lucas matthysse of course, the way he knocked out Mike Dallas Jr out cold with his left hook on the temple was nasty and every boxer fears him because of his knockout power
Toss up between Andre Ward, Sergio Martinez, and Manny Pacquiao!
Mayweather right
although Juanma has may be the best one punch in a particular fight in the last 10 or 20 years
Andre Ward's right cross or Sergio Martinez's straight left
Floyd's straight right hand is the best single punch in boxing.
Adrian Broner
Floyd's straight is numero uno in boxing. When he throws it, his hook is better than Donaire's too. He's like a surgeon with pretty much everything he throws. Precision and accuracy; poetry in motion.
Some people say its Donaire's left hook, some say its Wladimir's Jab, but who do you think out of all the boxers active today has the best single shot?
agree with ronnie. mayweather's right is like a lazer beam.fast accurate and very dangerous
Pacquiao's straight left hand.
Me I practise on my husband all the time
Randall Baileys' right hand by far.