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.
In Avengers: Infinity War, the Thanos who was on the hunt for infinity stones said that he respects Tony Stark. In Avengers: Endgame, Iron Man (Robert Downey Jr) killed Thanos (Josh Brolin) by snapping his fingers when he wielded the infinity gauntlet.
Hawkeye never fought Thanos, fortunately, though he'd provide cover fire for the Avengers during a battle against Thanos if asked. Now that Thanos is gone, and Hawkeye can focus his efforts on fighting opponents closer to his own level.
Loki. Norse God of Mischief, Brother of Thor, Odinson.
Thanos hates Deadpool not because he's some great hero like Thor or Hulk with whom he's had epic battles, but because he took the one thing he'll never be able to attain: Death's attention and love. Stay humble, Thanos.
The theory posits Ego, Odin, and The Ancient One as three of Thanos' greatest fears, and he waited until all of them were dead to make his move.
Even though Deadpool and Thanos never met, Thanos considers him to be a rival because he knows Death prefers Deadpool's love over his.
While Thanos is an Eternal and has the standard powers of super-strength, agility, regeneration, immortality, and more, Adam Warlock takes the upper hand. He can be killed, but he resurrects to be stronger every time.
Kang is stronger than Thanos, with the Conquerer being much more challenging to defeat than the Infinity Gauntlet-wielding villain.
Ultron is among the Avengers' most powerful villains in the comics – and one of the few Marvel villains to be exclusive to the group rather than an individual hero. However, the MCU did him dirty by reducing him to only one movie, Avengers: Age of Ultron, and portraying him as a pushover.
Thanos's power, cunning, and years of experience have allowed him to outsmart and defeat some of the most powerful beings in the universe. All manners of beings have fallen before Thanos and while the Avengers are powerful, if Thanos really put his mind to it, he could end the Avengers at any moment.
There are few beings in the universe Thanos is scared of and the Hulk is one of them. There's a good reason for this, Hulk's strength is potentially limitless. One of the things that makes the Hulk so dangerous is that if you can't take him out quickly, you're never going to take him out.
Tony Stark died at the end of 'Avengers: Endgame' but before that he saved the entire universe from Thanos and his forces by snapping them out of existence and ending their threat once and for all. But the use of all the six Infinity Stones all at once took its toll on his body and he died of his grievous injuries.
Kang has arrived. At Comic-Con 2022, Marvel Studios' Kevin Feige made official what many fans had been theorizing for some time: Kang the Conqueror is the MCU's next Thanos-like villain.
Now, despite Avengers: Infinity War essentially claiming that Gamora was the only thing in the world that Thanos loved – other than the power he so desperately sought under the guise of 'cosmic balance' – some fans aren't buying it.
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.
3 Darkseid Is Thanos's Superior
The God of Evil has been fighting his wars for countless millennia and is one of the most powerful beings around. Few enemies have ever been able to beat him one on one and killing him is nigh impossible. Thanos is a fearsome enemy, but Darkseid is his superior in all forms.
Even taking into account Thanos killing half the universe in one go, Galactus still wins on kill count.
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.
However, with Doctor Strange in the Multiverse of Madness, the Scarlet Witch's candidacy is thrown for a loop. That's because the film reaffirms the angry version of Wanda wouldn't have been able to kill Thanos.
Thor is great at close-range combat, too, which is one of Wanda's weak points. Captain Marvel and Captain Carter were able to get in a few blows before succumbing to the Scarlet Witch, and that is because they got close enough to her to do it.
Hela, the Asgardian Goddess of Death, rules two of the nine realms: Hel, land of the dead, and Niffleheim, land of eternal ice. With a simple touch, she can cause gods to perish, but Hela's purpose is to receive Asgardian souls, as well as their followers.
Thor was sent into a state of shock and panic after Thanos completed the Snap, even more so than his allies because Thor was afraid of the consequences.
Let me please remind you, that thanos was more scared of Wanda then of any other avenger.