Ali and Frazier almost the definition of warrior especially in Manila. Frank Bruno had his shortcomings but he had no lack of heart.
Il stick with today. 1- duhapas. Fights everyone. Takes his licks. Fought roided Povetkin on like 4 days notice. 2- wilder. Never stopped trying against fury. Many boxers would have been mentally destroyed by round 6 with the schooling, but he kept bombing,got the two drops and saved his belt. 3- fury. Will fight as long as there’s breathe in him and he can stand. 4- Ruiz - emotionless in the ring with an iron beard. 5- Oliver McCall. 55 soon and just won again a week or two ago. Boxrec has him at #61. Above his son. Massive respect. And still never dropped! And McCall is #17 American heavyweight haha!