While the debate over who the strongest Avenger is in the MCU now includes a variety of newer characters, it originated with 2012's The Avengers and primarily focused on Chris Hemsworth's Thor and Mark Ruffalo's Hulk. The friendly rivalry between the two characters sparked discussions between audiences over who the stronger of the two is, which were further fueled by their brief altercation in the S.H.I.E.L.D. Helicarrier. Phases 3 and 4 of the MCU introduced characters that are also gunning for the title of strongest Avenger, like Benedict Cumberbatch's Doctor Strange, Brie Larson's Captain Marvel, and Elizabeth Olsen's Scarlet Witch; but both Thor and Hulk remain frontrunners for the role.
The two characters have also changed drastically throughout their MCU journey following their appearances in the 2012 superhero ensemble. Avengers: Endgame revealed that Bruce Banner chose to merge his two identities, which in turn tamed the Hulk and made him less of a savage beast. Thor, on the other hand, lost his hammer Mjolnir in Thor: Ragnarok, but that led to him unlocking the full potential of his godly powers to save the Asgardian people. He also acquired a new weapon, Stormbreaker, in Avengers: Infinity War, which gave him even more powers, such as controlling the Bifrost.
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When only taking the powers each character displayed in the first Avengers into consideration, Hulk comes out on top as the strongest Avenger over Thor. While this may not be the case in the current MCU, Hulk proved that he is more powerful than Thor multiple times throughout the iconic film. The quick brawl the two characters have in the middle of the film, their actions in the
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