In recent times pac vs marg and vitali vs briggs, I always find ali beating up a injured floyd patterson kind of cruel.
One that doesn't get mentioned that much is Roy Jones v Richard Hall. That was just a beating from start to finish, with Roy doing plenty of fannying about in between.
Duran vs DeJesus 2/3 JCC vs Rosario Henry Armstrong vs Barney Ross Margorito vs Cotto SRR vs LaMotta (the one where LaMotta was stopped)
Pacquiao vs Hatton. Im just glad Hatton didnt have the chin he once had , or it could have been a very bad night for boxing.