When King Kong has to fight Godzilla in the movies, they always make him much bigger than he really is, and Godzilla smaller and less lethal.
I’d have a hard time believing that what is in essence a 300+++ feet tall Tyranosaurus with a nuclear-blue fiery death weapon that could devastate Tokyo like Hiroshima would lose to a 50 foot ape.
Having Komg fight Dinosaurs is a possibility, but Godzilla or Rodan or any of the rest? No.
In one of the King Kong vs Godzilla movies, Godzilla’s death ray and lightning would make King Kong stronger, and Godzilla was vulnerable to lightening.
Let’s stop fudging in the Monkey’s favor—I agree with @filmfann that the Godzilla vs Bambi approach would be best for a Godzilla vs. King Kong film.,