Well to tell you the truth i think that Michael Spinks was the best lightheavywieght he held all the titles at one time and did defend one of the belts being wba belt 11 times and beat every one pretty easy and was undefeated as lightheavywieght. Also he had alot of power at Lightheavyweight and his akward way of fighting was hard for many opponents so he's my pick for the best buts thats just me.