It is highly unlikely that Odin could defeat Galactus.
Odin's Strengths
- Vast Magical Power: Odin possesses immense magical abilities, including control over the elements, teleportation, and energy manipulation.
- Asgardian Physiology: Odin is a powerful Asgardian with superhuman strength, speed, durability, and stamina.
- Odinforce: Odin wields the Odinforce, a cosmic energy source that grants him incredible power and abilities.
Galactus' Strengths
- Cosmic Entity: Galactus is a cosmic entity with near-infinite power, capable of manipulating energy and matter on a universal scale.
- Devourer of Worlds: Galactus sustains himself by consuming the energy of planets, granting him immense power and near-invulnerability.
- Cosmic Awareness: Galactus possesses vast cosmic awareness, allowing him to perceive events across the universe.
Why Odin Would Struggle
- Power Disparity: Galactus' power far exceeds Odin's, even with the Odinforce.
- Cosmic Power vs. Magical Power: Galactus wields cosmic power, which is fundamentally more powerful than Odin's magic.
- Devouring Power: Galactus' ability to consume planets for energy makes him virtually unstoppable.
While Odin is a powerful being, Galactus' cosmic power and ability to consume planets for energy make him a near-unbeatable foe. Odin's chances of victory would be incredibly slim.