The biggest heavyweight fights throughout history that never happened.
Fights that could have (somewhat) realistically happened given both fighters being active but never did. Who wins?
Foreman vs Holmes (either 1978)
Tyson vs Foreman (1990/91)
Tyson vs Bowe (before 1992)
Lewis vs Bowe (1990-1995)
Holyfield vs Vitali (1999)
Lewis vs Wlad (after 2003)
Vitali vs Fury (2012)