While Thanos is an Eternal and has the standard powers of super-strength, agility, regeneration, immortality, and more,
While the MCU Hulk was not able to defeat Thanos, his comic book counterparts pose a better chance to make an even fight particularly if Thanos does not wield the Infinity Gauntlet. These two titans in the Marvel Universe seem destined to do battle in some form or another.
Scarlet Witch is often regarded as the strongest Avenger, given her ability to use Chaos Magic. And with that magical ability, Thanos would be no match for Wanda Maximoff. Even before she mastered her powers, Maximoff put up a decent fight against Thanos in Infinity War and in Endgame.
Kang is stronger than Thanos, with the Conquerer being much more challenging to defeat than the Infinity Gauntlet-wielding villain.
The Anti-Monitor's vast intelligence and cosmic understanding could also play a role in his defeat of Thanos. He could outsmart Thanos, exploiting his weaknesses and neutralizing his power.
GOOD - He Doesn't Discriminate In The Preservation of Life
With no consideration for things like power, status, or character, Thanos doesn't let personal opinions dictate which individuals deserve life or death. He only seeks to accomplish his goal and doesn't deem certain individuals as less worthy than others.
Drax is pretty much the sworn enemy of Thanos and unlike the Marvel Cinematic Universe, the Marvel Comics version of Drax the Destroyer isn't as weak. In fact, he is very strong and he was brought into existence keeping the power of the Mad Titan in mind.
That villain is, of course, Kang the Conqueror, who's set to be the Avengers' next opponent in the upcoming Avengers: The Kang Dynasty. And while Thanos is certainly a hard act to follow, Kang may be a far greater threat than the Mad Titan ever was.
The Asgardian Son of Odin was extremely close to ending Thanos at the end of Avengers: Infinity War. After gaining the powerful weapon Stormbreaker, Thor becomes the wielder of the most powerful weapon in the universe. Stormbreaker is capable of killing Thanos outright, and only Thor is currently worthy of wielding it.
Thanos was born approximately 1,000 years ago on the planet Titan to A'Lars, along with his brother Eros.
Even taking into account Thanos killing half the universe in one go, Galactus still wins on kill count.
Another superhero that defeated Thanos in the comics is not other than Thor. The Son of Odin and God of Thunder from Asgard is one of the most powerful beings in the Marvel Universe. We saw from the Marvel Cinematic Universe how he brutally executed The Mad Titan but failed to kill him the first time as well.
Abomination – Emil Blonsky. A gamma-spawned monstrous powerhouse. The Hulk's primary physical rival.
Thanos has the infinity gauntlet with all six infinity stones (gems). If he “retires”, like like he does after snapping away half of life (movie Infinity War), then he is no longer in possession of the six infinity stones powers, and will definitely not be able to beat Saitama.
Thanos is a mutant member of the race of superhumans known as the Titanian Eternals. The character possesses abilities common to the Eternals, but amplified to a higher degree through a combination of his mutant–Eternal heritage, bionic amplification, mysticism, and power bestowed by the abstract entity, Death.
The exact reasons why Thanos is taller in the MCU than in the comics are mostly unknown. It's possible that Thanos had to be higher than everyone else to appear more sinister. He also needed to stand out when compared to other superpowered beings such as the Hulk, Thor, Iron Man, and the rest of the Avengers.
Thanos, however, is also afflicted by Deviant syndrome, a genetic disposition that gave him a monstrous appearance but also the power to synthesize cosmic energy, which made him stronger than most Eternals.
Most Eternals look like gorgeous human übermenschen, but Thanos was born with a disease called the Deviant Syndrome, which gave him his massive body, hidelike skin, and distinctively weird creases in his chin.
As per the user, the director of Avengers confirmed that Thanos was most scared of Iron Man. “Not because of his strength, not because of his power, not because of his power, but because of his suit,” he added.
However, Ultron, who was fascinated with the Stones, effortlessly killed Thanos by cutting his body in half with a laser beam from the Mind Stone and obtained all the Stones for himself which turned him into a cosmic being.
Being surprised with Nebula's trust in what he had said, Thanos thanked her for believing him and finally admitted that perhaps he had treated her too harshly. Before he could say anything else, an enraged Thor decapitated Thanos, killing the Mad Titan.
Being the strongest and most evil of all of them and appearing as a threatening and monstrous beast, Thanos fell in love with the living female embodiment of death and is willing to destroy every existence to win her love, no matter how powerful he must become in his quest to do so or who dares to stop him in his goals ...
Eros, also known as Starfox, is a member of the genetically engineered Eternals. Created by Arishem the Judge in the World Forge, he was stationed on Titan, joining the royal family as a prince and becoming the adoptive brother of Thanos.