best for power/ko

[Kid Achilles]

Asian is correct. I can't remember the source but someone did some research and found the left hook to be responsible for the most knockouts in boxing history.

[Brockton Lip]

The uppercut is tougher to get off on an opponent which is why uppercut ko's don't happen as much, but I'm pretty sure that its more powerful.

[JerryJigsaw]

it depends on YOUR punch. I.E Fraziers left hook, Mcguigan's right hand..

[jabsRstiff]

Easily the left hook. The left hook in boxing is the most dangerous punch, especially when it is thrown right after the right hand. Just the natural body position after throwing a right hand leaves the body contorted in the perfect stance to get ultimate leverage on the shot, and then the punch can travel the full arc outside of your opponents perephirel vision. Thats why the left hook is the most dangerous punch in boxing.

The kid has it right, here.

[hemichromis]

most powerful = cross
best for ko = hook or possibly uppercut to the chin

[keystone30pack]

left hook

seems more likely to be unseen

also the thread included jab but exluded overhand shots

which i would have been in the minority and voted for

[aljon]

Hook is the most powerful, if you know how to throw a hook using your upperbody weight at the same time you'll kno what I'm talking about...

[Mistadobalina]

hookercut, razor ruddock style

[keystone30pack]

Hook is the most powerful, if you know how to throw a hook using your upperbody weight at the same time you'll kno what I'm talking about...

a hook wiht mere upper body is no match for a hook utilizing the legs hips and pivoting of the foot

anything else is an arm punch

[Da Iceman]

i say hook. cause u can always block an uppercut but i hook is alot harder

i dont think he means it like that. i think he meant if one hits you cleanly which is more likely to ktfo.