OK, I have a two pronged approach when calculating punching power #1 Is the weight of the punch how hard it lands #2 Is the speed of the punch as we all know Weight + Velocity = Momentum and for this conversation the Momentum will = Power.

Weight of the punch
1. Foreman
2. Lewis
3. Frazier
4. Tyson
5. Vitali
6. Wladimir
7. Bruno
8. Liston
9. Bowe
10. Holyfield

Speed of the punch
1. Tyson
2. Frazier
3. Wladimir
4. Lewis
5. Vitali
6. Holyfield
7. Bruno
8. Bowe
9. Liston
10. Foreman

Frazier. = 7.5
Tyson. = 7.5
Foreman. = 5.5
Wlad. = 7
Viltali. = 5
Liston. = 1.5
Lennox Lewis. = 7
Frank Bruno. = 3
Riddick Bowe. = 1.5
Evander Holyfield. = 2

That is out of 10 and specifically judging these 10 fighters' power against one another. So the order I have them together based on my calculations which I just made up at this moment without knowledge of what the order would be are:

1. Tyson & Frazier - 7.5/10
3. Lewis & Wlad - 7/10
5. Foreman - 5.5/10
6. Vitali - 5/10
7. Bruno - 3/10
8. Holyfield -2/10
9. Bowe & Liston 1.5/10

So there you have it folks...seems ok to me, I mean obviously I think Big George is the most devistating puncher of all time but speed does enter the equation at some point and he had "heavy hands". I wouldn't want to get punched by any of those guys.