Lots of good post here. How about Matthew Saad Muhammed vs Yaqui Lopez or either of the Matthew Saad Muhammed vs Marvin Johnson fights. I think the first one maybe have been more violent than the second one (and that's saying alot). For you younger guys ANY Matthew Saad Muhammed title fight was extremely violent.
the most brutal fight ive seen was probably benn vs mcclellan. Incredible fight. the punishment they BOTH took was amazing. Obviously we know the sad story of gerald but i remember benn had many injuries also including a broken jaw, kidney damage (forgot the others). As RJJ once said when he was asked if he had saw that fight again- he replied ''thats not the type of fight you want to be seeing again'' (or ''for a second time'')- forgot which one he used lol
Benn - Mclellan . Amazing courage and heart shown by both men. That fight had it all, not all of it good. It was also fought at an amazingly high level. I honestly think that if what happened to Gerald wouldn't have this would be rated as one of the best fights ever.