616 Savage Hulk and Classic Mjolnir wielding Odinson
Versus:
Godzilla Earth and Planet Eater Ghidorah (anime movies)
+
Godzilla and Ghidorah from the recent Monsterverse films.
So it's a 2 on 4 fight.
Fight in Boston. 1 mile away from each other.
Bonus: Godzilla gets his burning form