Is Joe Louis the Greatest Pure Puncher of All Time?

[BigStereotype]

After watching the Katsidis fight...does Marquez belong on this list? He's not Louis or Robinson, and his speed isn't as eyepopping as some of those guys, but he's got big power and jaw-dropping accuracy, technique, angles, all of it. Maybe I'm blinded by fandom, but he's an impressive offensive fighter.