What historical boxers defeated the most Hall of Famers and future World Champs during their career?

I guess it's Sugar Ray Robinson. Among the Hall of Famers he fought and mostly defeated included Fritzie Zivic, Jake La Motta, Sammy Angott, Kid Gavilan, Henry Armstrong, Carmen Basilio, Rocky Graziano, Randolf Turpin, Bobo Olson, Gene Fullmer, Joey Archer and Joey Maxim. Among the future world champions he fought and mostly beat included Tommy Bell, Kid Gavilan, Carmen Basilio, Jake La Motta, Paul Pender, Randy Turpin, Bobo Olson, Terry Downes, Gene Fullmer and Joey Giardello

Harry Greb defeated 11 Hall of Fame fighters in his career. They are

Mickey Walker

Gene Tunney

Tommy Loughran

Battling Levinsky

Mike Gibbons

Kid Norfolk

Tommy Gibbons

Jack Dillon

Jimmy Slattery

Maxie Rosenbloom

Tiger Flowers

and World Champs

Gene Tunney

Johnny Wilson

Tiger Flowers

Battling Levinsky

Mickey Walker

Jack Dillon

Mike McTigue

Al McCoy

George Chip

Maxie Rosenbloom

Jimmy Slattery

In total, Harry Greb faced 16 Hall of Famers a combined total of 48 times during his career, going 33-9-6 against men who would later be defined as all-time greats. In 1919 alone, he fought 45 times, a feat that is very unlikely to be repeated given the current trajectory taken by modern boxers

Roberto Duran fought 18:

1.Hector Camacho

2. William Joppy

3.Jorge Fernando Castro

4.Vinny Pazienza

5.Sugar Ray Leonard

6.Thomas Hearns

7.Marvin Hagler

8.Iran Barkley

9.Guts Ishimatsu

10.Pipino Cuevas

11.Davey Moore

12.Hiroshi Kobayashi

13.Wilfred Benitez

14.Ernesto Marcel

15.Carlos Palomino

16.Esteban De Jesus

17.Saoul Mamby

18.Ken Buchanan

Louis, beat Carnera, Baer, Charles, Walcott, Schmelling Sharkey, etc.

Hard to say but Harry Greb comes to mind

like Jesus said Greb comes to mind

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