Leonard-Hearns 1 for me. That fight had such great momentum swings.
Also if I wanna watch something a little shorter- Naz-Kelley is one I always enjoy.
Castillo Coralles 1
Hagler Hearns
Hagler Mugabi
Duran Barkley
Leonard Green
Ali Folley
Ali Williams
Ali Frazier 1 2 3
Holmes Norton Rd 10 to 15
Oscar vs Vargas
Foreman Lyle
Gatti Ward 1 and 3
Pryor Arguello
Manny Margarito
Floyd Hatton
I like to re-watch the Joe Calzaghe verses Jeff Lacy fight. Shows just how world class Joe was. Recently I've been watching YouTube videos of Joe Louis' fights to see where I would place him as an all time great heavyweight. Off hand I would say at number two with Ali still number one by a clear margin.