RDJ for Iron Man. His performance is the bedrock the Infinity Saga was built upon. Al Pacino for Michael Corleone. Just a terrible snub James Earl Jones for Darth Vader. I know, it's a voice performance. But if not for his voice, Vader would not be the icon he is now

Leonardo DiCaprio in TWOW. Easily.

James McAvoy for Split and Filth

Michael Fassbender

Leonardo De Caprio for every one of his movies otger than the Revenant..

Eddie Murphy as James "Thunder" Early in Dreamgirls is my hill.

Robert Downey Jr