Generally, Omni-Man is stronger. He has superior physical abilities and a longer history of using his powers effectively. However, Invincible has shown potential to catch up over time.
Sure. Invincible's journey in the comics sees him continuously evolving and getting stronger. Eventually, he outpaces Omni-Man, but it's not an easy or straightforward path. There are many challenges and setbacks along the way.
Man vs. Wild: The Unrivaled Player was a novel about the protagonist transmigrating into the wilderness survival game world. In this game, the main character's island did not have any system support, while the player's continent was cruel and had a system. However, the protagonist could bypass the system settings and increase his strength by hunting and eating meat. From there, he could walk the path of invincibility and compete with the system. This novel was written by the author Wudi. It already had 45,000 words and was updated three chapters a day. The author hoped to pursue details and emotional logic through this novel, rather than simply pursuing pleasure. If you are interested in this book, you can read it and download it.
The Invincible System of Man vs. Wild was a novel in which the protagonist transmigrated into the game world of Man vs. Wild. In this game, the main character's island did not have any system support, but the player's continent had a system. The protagonist could increase his strength by hunting and eating meat, bypassing the system settings. The novel described the protagonist's survival in the wilderness.
One idea could be a battle in an alternate dimension where the laws of physics are different. This would force both Superman and Omni - Man to adapt their fighting styles. Another could be a scenario where they are forced to team up against a greater threat first, before their own conflict resurfaces.
It's hard to say for sure. Omni - Man has incredible strength and combat experience. However, Superman has near - invulnerability and his powers are powered by the sun. If the fight takes place on Earth, Superman has the home - field advantage with the sun constantly recharging him. But if it's a long - drawn - out battle, Omni - Man's tenacity could also be a factor. In my opinion, Superman's powers are more diverse and powerful, so he would likely come out on top.