If I had to make a p4p list

[Mr.MojoRisin']

I would split up boxing history into 5 eras:
1980-present
1961-1979
1930-1960
1900-1929
Pre 1900's

Then I would create a list of top 10 from the list of top 5's from each of the above sections. It would take a while but I believe this is how you accurately compare fighters.

I came up with these eras with a couple things in mind size of fighters in the weight class, when the science of boxing has changed, and level of competition.

1980-Present
1. Floyd Mayweather Jr
2. Pernell Whitaker
3. Roy Jones Jr
4. Lennox Lewis
5. Sugar Ray Leonard
6. Marvin Hagler
7. Prince Naseem Hamed
8. Bernard Hopkins
9. Julio Cesar Chavez Sr
10. Manny Pacquiao

1960-1979
1. Muhammad Ali
2. Roberto Duran
3. Carlos Monzon
4. George Foreman
5. Larry Holmes
6. Jose Napoles
7. Sonny Liston
8. Emile Griffith
9. Joe Frazier
10. Jose Torres

1930-1959
1. Sugar Ray Robinson
2. Joe Louis
3. Henry Armstrong
4. Willie Pep
5. Barney Ross
6. Rocky Marciano
7. Floyd Patterson
8. Archie Moore
9. Jake Lamotta
10. Marcel Cerdan

1900-1929
1. Harry Greb
2. Jack Dempsey
3. Gene Tunney
4. Stanley Ketchel
5. Jack Johnson
6.Tiger Flowers
7. Joe Gans
9. Philadelphia Jack Obrien
10. Jess Willard

Pre 1900
1. Sam Langford
2. Nonpareil Jack Dempsey
3. John L. Sullivan
4. Bob Fitzsimmons
5. John J. Corbett
6. James J. Jeffries
7. Tommy Ryan
8. Tom Sharkey
9. Paddy Ryan
10. Barbados Joe Walcott

Overall
1. Sugar Ray Robinson
2. Muhammad Ali
3. Henry Armstrong
4. Harry Greb
5. Joe Louis
6. Sugar Ray Leonard
7. Roberto Duran
8. Pernell Whitaker
9. Willie Pep
10. Jack Dempsey

With this criteria how would some of you (that are actually smart and don't resort to name calling) create a list?

[NChristo]

1900-1929
1. Harry Greb
2. Sam Langford
3. Benny Leonard
4. Gene Tunney
5. Joe Gans
6. Mickey Walker
7. Abe Attell
9. Tiger Flowers
10. Ted Kid Lewis

6-10 could go in any order