Godzilla is the undisputed King of the Monsters. This iconic kaiju originated in 1954's Godzilla, a Japanese movie that later spawned one of the biggest media franchises in history. In fact, movies like Steven Spielberg's Jurassic Park wouldn't have even existed without Godzilla. Through nearly 70 years of movies, Godzilla has beaten the likes of King Ghidorah, King Kong, Mothra, Gigan, and several other kaiju.
Source:https://www.cbr.com/godzilla-most-powerful-versions/