So, let's take 10 of the bigger names or ranked (Ring rankings) fighters from WW to jMW (in no particular order) -Mayweather -Pacquiao -Mosley -Cotto -Margarito -Clottey -Cintron -Williams -Angulo (I put Berto first but since he hasn't fought any of these guys I removed him) -Martinez (ok, well maybe Martinez is a bit of a stretch, but let's just assume he can still make 154) I was looking at who has fought who amongst these 10 and this is what I got. I was surprised looking at who Marg has fought. The guy may be a cheat but he sure has balls. -Margarito has fought Pac, Cotto, Williams, Martinez, Clottey, Mosley and Cintron for a total of 7 with 1 more rematch against Cintron Marg went 5-3-Cintron fought Marg, Willams, Angulo and Martinez for a total of 4 with 1 rematch 1-3-1 (but should have been 1-4)-Cotto fought Mosley, Margarito, Pac and Clottey for a total of 4 Cotto went 2-2-Martinez fought Cintron, Williams and Marg for a total of 3 with 1 rematch Martinez went 1-2-1 (but should have been at least 2-2 or 3-1 if you had him winning the 1st fight with Williams)-Williams fought Marg, Martinez and Cintron for a total of 3 with 1 rematch Williams went 3-1 (or again, 2-2 if you want to give both fights to Martinez)-Mosley fought Cotto, Marg and Mayweather for a total of 3 Mosley went 1-2-Pac fought Cotto, Clottey and Marg for a total of 3 Pac went 3-0-Clottey fought Marg, Cotto and Pac for a total of 3 Clottey went 0-3 (1-2 if you think he won against Cotto)-Mayweather fought Mosley 1-0-Angulo fought Cintron he went 0-1 Discuss(and feel free to point out any mistakes, my memory might be failing me and boxrec was down while I was writing this).
A little inexperienced or rusty but lets not forget Berto, Kirkland, Alvarez, Martirosyan. Chavez and Dzinkuruk.
I only chose 10 so I wanted to limit it to fighters who have actually fought each other at least once.
poor Zab, he'll be 0-3 if I add him but at least it would improve Floyd, Cotto and Clottey to 2-0, 3-2 and 1-3 respectively