Honorable Mentions:
Godzilla vs Gigan (1972)
Godzilla 2000 (1999)
Godzilla vs Megalon (1973)
Godzilla vs The Sea Monster (1966)
Number 10: Godzilla Against MechaGodzilla (2002)
Number 09: Godzilla vs Megagirus (2000)
Number 08: Godzilla vs SpaceGodzilla (1994)
Number 07: Godzilla vs Mothra (1992)
Number 06: Godzilla vs King Ghidorah (1991)
Number 05: Destroy All Monsters (1968)
Number 04: Godzilla, Mothra, and King Ghidorah: Giant Monsters All Out Attack (2001)
Number 03: Godzilla vs Destroyah (1995)
Number 02: Godzilla (2014)
Number 01: Godzilla, King of the Monsters! (1954)
Godzilla vs Gigan (1972)
Godzilla 2000 (1999)
Godzilla vs Megalon (1973)
Godzilla vs The Sea Monster (1966)
Number 10: Godzilla Against MechaGodzilla (2002)
Number 09: Godzilla vs Megagirus (2000)
Number 08: Godzilla vs SpaceGodzilla (1994)
Number 07: Godzilla vs Mothra (1992)
Number 06: Godzilla vs King Ghidorah (1991)
Number 05: Destroy All Monsters (1968)
Number 04: Godzilla, Mothra, and King Ghidorah: Giant Monsters All Out Attack (2001)
Number 03: Godzilla vs Destroyah (1995)
Number 02: Godzilla (2014)
Number 01: Godzilla, King of the Monsters! (1954)