Its for certain in the top 5 IMO, something like.

Muhammad Ali vs Joe Frazier
Marco Antonio Barrera vs Erik Morales
Tony Zale v Rocky Graziano
Israel Vasquez vs Rafael Marquez
Arturo Gatti vs Micky Ward

What is surprising is that normally when there are trilogies, the 1st fight is always mostly the best then the fights get a little less exciting. But with Marquez vs Vasquez the trilogy got better and better.