Megumi Fushiguro is popular as well. His cool and reserved demeanor, along with his powerful cursed technique, attracts a lot of fanfiction authors. They might write about his relationship with other characters, like his unspoken bond with Yuuji, or explore how he further hones his skills in different scenarios.
Yuji Itadori is often a popular choice. His determination and unique abilities make for interesting time - travel scenarios. He could use his physical strength and Sukuna's power in different ways in the past or future.
In fiction, characters like Thor from the Marvel universe are very strong. He wields his enchanted hammer Mjolnir and has the power of lightning. He has faced many powerful enemies and held his own. Then there's Hulk. His strength increases as he gets angrier, and he can smash through just about anything. In the world of Middle - earth from Tolkien's works, Morgoth was an extremely powerful character in the lore, though he was ultimately defeated. But his power was such that he could cause great destruction and corruption.
One of the strongest characters in fiction is Superman. He has superhuman strength, can fly, and has heat vision among other powers. His abilities make him extremely formidable against almost any foe.
It really depends on the specific fictional universe. In superhero comics, characters like Superman and Thor are often considered among the strongest. But in fantasy worlds, maybe characters like Gandalf or Dumbledore take the lead.
It's hard to say for sure as it depends on different fictional universes. But characters like Superman in DC Comics and Goku from Dragon Ball are often considered among the strongest.
It depends on the specific fictional universe. In some, it might be Superman for his superpowers. In others, it could be Gandalf for his wisdom and magic.