Emmanuel "Pacman" Pacquiao is The Second Greatest Welterweight of All Time.

5) Tommy Hearns
4) Henry Armstrong
3) Ray Leonard
2) Manny Pacquiao
1) Ray Robinson

 

I rate Pacquiao as the second greatest welterweight of all time because 1) the man has no business at welterweight and 2) he went on an insane run and the only way he was beaten was due to corruption (Bradley I) or performance-enhanced drug users (Marquez and Mayweather). One guy who didn't win (Rios) was on diuretics. If you consider that Pacquiao fought cheaters and was robbed, he is unbeaten at welterweight.

 

I'm also OK w/ this:

5) Joe Walcott
4) Tommy Hearns
3) Henry Armstrong
2) Ray Leonard
1a) Ray Robinson
1b) Manny Pacquiao

 

Of course it is.

Oscar De La Hoya
Miguel Cotto (significant size disadvantage)
Shane Mosley (significant size disadvantage)
Joshua Clottey (significant size disadvantage)
Brandon Rios (PEDs + significant size disadvantage)
Chris Algieri (significant size disadvantage)
Jessie Vargas (significant size disadvantage)
Juan Manuel Marquez (PEDs)
Floyd Mayweather (PEDs + significant size disadvantage)

You had 2 certified (3, if you count Bradley, who is borderline ATG w/ his win over a rampaging, roided Marquez) elite, A+ talent ATGs needing to roid to fight Pacquiao.

 

Are you dumb?

Marquez exploded in size (muscle) and was punching with insane, concussive force. Then he showed up the Alvarado fight w/ massive amounts of acne and boils across his chest and back. Plus Memo.

And then you had Mayweather, who had Ariza and Memo, supposedly becoming so "severe dehydrated" that he needed 750 ml of banned IV fluids, given a TUE by USADA, the same organization that suspended and fined BJ Penn for receiving IV fluids under the care of a doctor, with formal notice, and during out-of-competition training.

 

118-110 Mayweather

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KTFO Marquez

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Pacquiao's power at welterweight wasn't all that.

Pacquiao hit Cotto w/ everything but the kitchen sink and COULDN'T get Cotto out of there. Cotto could have EASILY made it to the final bell, but Bayless granted the mercy TKO.

Pacquiao hit Antonio Margarito w/ everything but the kitchen sink and COULDN'T get him out of there despite the broken eye. The referee was a sadist, but this could have easily been a TKO victory, which would have silenced the no KO in 7 years talk.

Bradley, unKOable.

Clottey, a tank and unKOable.

Rios, unKOable until he came in fat and untrained (even Bradley shrugged his shoulders and looked embarassed).

Mosley, unKOable (Mundine TKO was a shoulder injury).

Chris Algieri was out on his feet in Round 9. When Pac went in to finish him, the ref bizarrely pushed Pac off of Algieri. Pac thought that the fight had been stopped. Could have easily been a TKO victory.

Pac broke Marquez's face and made him do a dance before he walked into that roided right hand. Marquez likely would have been stopped in the next few rounds (Marquez and Memo have both acknowledged this).

So post accusation, Pac could have had legitimate TKO victories over Margarito, Algieri, and Marquez.