Thanos turned Hulk into his pet during the 'Thanos Wins' storyline. Following the battle against the Avengers, all of Hulk's former teammates were either dead or captured. Hulk was met with the same fate as Thanos captured him beneath his own palace, turned him into a servant, and referred to him as a dog.
When Thanos wins in Marvel's comic universe, he keeps the Hulk as his dog until the end of time - feeding him a truly 'heroic' diet. When Thanos conquers the Marvel Universe, he makes Hulk his attack dog - and feeds him Captain America, among other..
In Thanos #15, the Cosmic Ghost-Rider reveals that Thanos has kept the Hulk as his own pet and fed him his former teammates - including Captain America. He shows Thanos the prison where the Hulk is kept - and it's pretty gruesome.
Thanos vs MCU Hulk
The Mad Titan was easily able to dispatch the Hulk without even using the only Infinity Stone he had available at the time: The Power Stone. The polished fighting style of Thanos proved too much for Hulk and his overall brutality and savagery.
After Avengers: Infinity War, some people thought Hulk feared Thanos, but the real person he fears is one he can never truly defeat.
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.
One of Hulk and Banner's greatest fears is never really belonging anywhere. They try again and again to find their tribe -- by joining the Avengers, falling in love, developing friendships, and fighting alongside allies.
Physically they're pretty evenly matched, but Thanos is just a much more skilled fighter. No stones were used in the fight. Per Joe Russo: "I would say that he's just that powerful," said Joe Russo.
A Marvel fan seems to have figured out the real reason why Bruce Banner—played by Mark Ruffalo—could not transform into Hulk at will in last year's Avengers: Infinity War. Hulk was being too difficult to control for Bruce Banner in Avengers: Infinity War.
Apocalypse. Apocalypse makes his way into this position on the list because he is technically stronger than the Hulk. He also has a multitude of other abilities, including telepathy, telekinesis, and shapeshifting. And that's just touching the surface of his powers.
As it turns out, the Hulk has another power that even he wasn't aware of, and it's that a blood transfusion given by Bruce Banner has the ability to turn others that match his DNA into the Hulk.
While the Avengers debated who could wield the Infinity Stones and save the universe, Hulk was ultimately the one who was deemed strong enough to survive reversing Thanos' snap.
Silver Surfer (2016)
Since the Surfer deemed himself “unworthy”, he spent eons earning the ability to finally wield Mjolnir.
The MCU, via Eternals, may have confirmed that Hulk's snap was stronger and harder than Thanos' in Avengers: Endgame.
Given those characteristics, Thanos knows that a fight with the Hulk would be an incredibly dangerous undertaking that could end in his own demise. Because of the Hulk's incredible strength which seemingly has no limit, Thanos was afraid to fight him without the help of the Infinity Stones.
Thanks to a magical power upgrade, Thanos has finally become stronger than the Hulk, as the Mad Titan battles with the Jade Giant like never before. In a new preview for Mech Strike: Monster Hunters #4 by Marvel Comics, Thanos takes on a new monstrous form as a result of the magical artifact, the Eye of the Kraken.
Fans have speculated that Hulk's unwillingness to fight is because he's scared of losing to Thanos again, but the writers and directors behind Infinity War have denounced such speculation. Turns out Hulk isn't scared; he's angry. Spoilers for Infinity War follow. Want us to remember this setting for all your devices?
This meant that the persona had all of the strength of the traditional Hulk (maybe more) and the intelligence of Bruce Banner. Unfortunately, while Endgame tried to bring this idea to life, it failed to maintain his strength and he was far from the strongest character on the battlefield by the final battle.
Hulk hates Banner because he's puny. The Hulk takes pride in his power and the freedom it gives him. He sees Banner as a waste because being Banner takes away from his life. He also knows that Banner would destroy him if he could.
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.
The Infinity Gauntlet effectively flips a coin for each person's life, and it just so happened to land on heads for her. Captain Marvel isn't in our universe at the time of the snap. Basically, its effects can't reach her.
Thanos was only able to overpower Thor because he had the Power Stone and was flanked by his Black Order. Thor eventually helps build Stormbreaker and nearly kills Thanos, who has a complete Infinity Gauntlet on.
The Avengers found that a certain lullaby, typically said by the Black Widow, was able to calm the Hulk and help him revert back to Banner, when the Hulk's strength was no longer needed.
Bruce explains that Hulks metabolize alcohol at an incredible rate and thus cannot get drunk, thus their drinking sessions are, "All buzz, no barf." The "buzz" experienced while consuming alcohol is a stage of drunkenness. If they cannot get drunk, they cannot get a buzz.
In his comic book appearances, the character, who has dissociative identity disorder (DID), is primarily represented by the alter ego Hulk, a green-skinned, hulking and muscular humanoid possessing a limitless degree of physical strength, and the alter ego Dr. Robert Bruce Banner, a physically weak, socially withdrawn, ...