I'll just name a few as I used to be a big boxing fan so there are many I could name..
Sugar Ray Lenard
Tomas Hearns
Nigal Benn
Cris Eubank
Roberto Duran
Cassius Clay
Evander Holyfield
Frank Bruno..( which English bloke wouldnt have him in there list )
Mike Tyson
Larry Holmes
Marvin Hagler
Thats it for now..