Fedor vs Barnett is the greatest fight that never was. I still have the Affliction: Trilogy poster up in my house.

I didn't watch them live, but I watched all the Pride FC shows when I got into MMA and (in no particular order) Fedor vs Nog II and III, Fedor vs Cro Cop, Sakuraba vs Wanderlei I and II, Rampage vs Wanderlei I and II, Shogun vs Rampage, Shogun vs Overeem, Shogun vs Nog, Liddell vs Overeem, Nog vs Barnett I and II, Cro Cop vs Vovchanchyn, Cro Cop vs Wanderlei II (the one under real MMA rules), Vovchanchyn vs anyone, and Sakuraba vs Royce got me really excited!