Superman is generally considered much stronger than Batman in terms of raw physical power. Superman has superhuman strength, can fly, has invulnerability, super speed, and heat vision, among other powers.

Batman, on the other hand, is a normal human at peak physical condition. His strengths lie in his intellect, detective skills, martial arts mastery, and advanced technology/gadgets.

However, Batman has defeated Superman in various comic storylines, usually by:
- Using kryptonite (Superman's weakness)
- Employing careful strategic planning
- Exploiting Superman's tendency to hold back against human opponents

So while Superman is physically stronger, the question of who would win in a fight often depends on the circumstances, preparation time, and the specific story being told. It's one of the most debated topics among comic fans!
