Superman vs Faora.
The hulkbuster fight was lacking in drama, choregraphy, and cinematography.
The Superman vs Faora fight, aside from having tremendous choreography and cinematography, was storytelling through action. We learned about Faora and thus about Krypton, and how she was only good at one thing and how she had confused views about evolution. There was the character arc of the military, they went from shooting at him to seeing him as an ally. We see Superman save people in a manner that isn't completely phoney and artificial like what Tony Stark did, of scanning a building to see that it had no people inside. We also see Superman defeat Faora in a way which actually makes sense: he uses his heat vision, which the story actually established is something Kryptonians need to practice, and then Faora starts choking, which again the story established is something that happens to Kryptonians with a new atmosphere.
This is truly a case of comprehensive dominance, by the Superman vs Faora fight, in every single category one can think of.