In the Marvel Universe, Odin is basically the Superman of Asgardians. Whatever Thor can do, he can do better—there's a reason it's not called the "Thor Force."
So while Zeus' best feat is defeating a mountain-sized monster, Odin's best feat is defeating a monster as big as nine worlds. Odin outclasses Zeus in intelligence, versatility, strength, and weapons. Zeus simply can't compete. The winner is Odin, All-Father of the Æsir.
In a battle between the two, it's unlikely Thanos would come out on top. He may be a powerful Titan, but against an Asgardian like Odin, whose power was essentially infinite, there is no way he could have won.
If he was relatively calm Odin would probably engage the Hulk physically to underline the difference in power between them. Odin would crush hulk! Odin is the most powerful being in the nine realms outside of cosmic entities.
Odin would beat thor a hundred times before it ever came down to a fight, but if it ever somehow came down to a legit fight, thor would beat his old man.
The Olympian and the Asgardian are evenly matched in terms of both strength and durability. For comparison, both Thor and Hercules' durability and raw power pale in comparison to the likes of Zeus - a low-key but crucial Thor: Love and Thunder spoiler for any future outings of the Olympians.
Odin stands a good chance at defeating a moderately-fed Galactus. Odin has been stated to be equal to a moderately-fed Galactus. Though Galan did withstand a powerful headbutt from Odin. The Devourer had just consumed one planet before that.
Mjolnir was crafted from a nugget of Uru, a powerful nigh-invulnerable Asgardian metal. Additional enchantments placed upon it by Odin made it virtually indestructible.
He has centuries of battle experience, the hones skills of a warrior, and one of the most powerful weapons in the universe. Putting it all together, Thor can win against the Hulk, even if he can't kill the Jade Giant.
Thanos Feared an Attack From Odin and He Might Have Been Planning One. However, it's possible that Odin kept his kids in the dark because he was preparing to take on Thanos all along.
Who would win in an MCU fight: Odin or Thanos? Without the Infinity Gauntlet, Thanos stands little chance against Prime Odin. Odin is stated to be able to shatter the Earth.
Odin wipes the floor with Thor every time they fight. So the fact that Thor was able to hold his own against Zeus speaks volumes, and I think is good enough evidence to say that between Odin and Zeus, Odin is more powerful than Zeus, perhaps even more than just "Slightly more powerful."
Steve Rogers is one of the few mortals able to not only lift Mjolnir, but wield its full power, making him someone who legitimately could defeat Thor. Assuming the reason for their battle is due to Thor being deceived, possessed, or otherwise out of his mind, Cap would be able to use Mjolnir against him.
For those who are having trouble with Odin in Final Fantasy VII Rebirth: he's weak against Disempowerment and Poison! -You can indefinitely delay getting hit with Zantetsuken if you time your Debraves, Defaiths, ATB attacks and Poison magic correctly.
As Skyfather of Olympus, Zeus wields power comparable to Odin, whose wrath Thanos has withstood but not bested. At the same time, Zeus cannot truly die. While the most powerful of Olympians can be badly wounded or even dismembered, he can never actually pass on into oblivion.
When Mangog threatened Asgard anew, Odin led his forces against him but ultimately perished at Mangog's hands. However, when the Olympian death god Pluto tried to conquer Asgard, Hela restored Odin to life to stop him.
While Superman could potentially overpower Thor, blows rendered by the mystical Mjolnir would likely impose serious damage on the Kryptonian hero. With his super-speed, the Man of Steel could probably avoid the Thunder God's lightning, but not necessarily, since Thor is just as fast.
And in terms of raw strength, Peak Odin is probably still more powerful. With time being cyclical, at some point Odin needs to hang himself from Yggdrasil, which Loki just made, and Odin made Loki who he is.
He often draws from his massive energy source known as the Odin force, has superhuman strength, durability and regenerative powers. He is also the god of war, wisdom, divination, and poetry. He uses all his strengths in the main pursuit of knowledge, but like the other Norse gods can also fight giants.
