Thanos was born to A'Lars, a member of the Titans, a race of powerful, god-like beings that evolved on the planet of Titan. He belonged to the royal family of Titan and was the adoptive brother of the Eternal Eros, who eventually left Titan.
In the comics, Thanos is a mutant member of the race of superhumans known as the Titanian Eternals. The character possesses abilities common to the Eternals, and is able to demonstrate invulnerability and superhuman strength, speed, and stamina, among other qualities.
As both god and ruler of the Endless Resurgence empire, Thanos controlled his people through a combination of force and fear, viewing freedom as disorder, as a hole in the universe that allows for in randomness and chaos. He saw death as an end to uncertainty, and so, he loved it.
Thanatos, in ancient Greek religion and mythology, the personification of death. Thanatos was the son of Nyx, the goddess of night, and the brother of Hypnos, the god of sleep.
Thanos is a cosmic-level super-villain and a mutant member of the Titan Eternal subspecies with deviant traits. Displaying godlike abilities in numerous attempts to either conquer or destroy reality, his many evil deeds earning him the title of the "Mad Titan".
An Eternal–Deviant warlord from the moon Titan, Thanos is regarded as one of the most powerful beings in the Marvel Universe. He has clashed with many heroes including the Avengers, the Guardians of the Galaxy, the Fantastic Four, the Eternals, and the X-Men.
As strong as Thanos is, Thor is actually stronger and has landed some gnarly punches- as well as Mjolnir blows- on the Mad Titan. However, strength hasn't been enough for Thor to beat Thanos. Physical strength is great and usually is enough against most people Thor fights, but it's never helped against Thanos.
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.
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.
Thanos and Hulk have clashed several times in Marvel lore, with Thanos even admitting he was scared to face the Hulk before acquiring the Infinity Stones. While Thanos is usually the victor, it's generally down to him using superior tactics and technology, rather than simply possessing greater physical strength.
But the one being Thanos hates more than anyone is the Merc With A Mouth himself, Deadpool – a rivalry that MCU fans are likely going to miss. While many fans may not expect this rivalry, Thanos and Deadpool have been at odds for quite some time.
The villain in Marvel Cinematic Universe (MCU) is the strongest villain that Avengers have ever face. He's the son of Alars, a Titans, which considered as the strongest race, just like gods. But who would have thought if Thanos in MCU is thousand years old! His age even surpasses Thor, the god of thunder himself.
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.
Summary. Galactus shows he can defeat Thanos, even with the Infinity Gauntlet, with the right amount of prep time in Silver Surfer Rebirth: Legacy #5. Galactus is one of the most powerful beings in the Marvel Universe, with very few peers, such as the Living Tribunal and the One-Above-All.
Hulk has taken on Marvel gods like Thor before and come out victorious, but Zeus represents a much more powerful opponent. The Olympian easily defeated the Hulk and tested his healing factor in their fight.
As such, Zeus decides to grant the Hulk's request to beat him to death in hand-to-hand combat. The Hulk's first blow sends Zeus crashing into a nearby building. Zeus then returns this with an even more powerful blow. The ruler of the Olympians than overpowers the Hulk, and ultimately knocks him off Mount Olympus.
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.
Superman has beaten everything the Multiverse has thrown at him and always come back for more. He's faced Thanos's type many times and always won. Superman is vastly more powerful and skilled than Thanos. It wouldn't take him long to realize how dangerous the Mad Titan was and once he did, he'd take the kid gloves off.
A significant part of Thor's trauma stems from his failure to kill Thanos in Avengers: Infinity War, leading to the Mad Titan's devastating Snap. Thor had Thanos comfortably beaten, yet did not strike a blow at his head, instead curiously deciding to sink Stormbreaker into the great Titan's chest.
By most accounts, Superman seemingly outclasses Thor in terms of raw strength, especially in earlier versions of the DC Universe. He's pulled planets, punched people into orbit, and performed all sorts of wild feats of strength.
