Short answer: Superman.

- Physical strength: Superman is vastly stronger—he can lift/build-level to planetary-scale feats depending on the story. Batman is peak human.
- In a fight: With prep, strategy, gadgets, or kryptonite, Batman has beaten Superman in some stories. Without those advantages, Superman usually wins.
- Continuity matters: Different comics, films, and games portray their power levels differently, but the baseline is Superman > Batman in raw strength.
