who was the most aggressive fighter of all times

[MonsieurGeorges]

Henry Armstrong, Sam Langford, Terry Mcgovern, Harry Greb

[CarlosG815]

Of those on the list it is Jack Dempsey followed closely by Mike Tyson.

[hhascup]

Years ago Nat Fleischer came out with a list:

MOST AGGRESSIVE:
1. Henry Armstrong
2. Joe Frazier
3. Harry Greb

I agree with this and would also add Aaron Pryor.

On your list, you don't have any of those names, But if I just went by that list, I would say Dempsey and Tyson top the list, with Marciano a distance 3rd.

[bklynboy]

From that list I would have Dempsey with Tyson as a close, very close second.