Aizen Sosuke is also a strong contender. His intelligence and manipulation skills, along with his unique powers, make him formidable. However, it's subjective as different characters have their own strengths at different points in the story.
It's hard to say for sure. Naruto in his Sage of Six Paths mode is extremely powerful, with access to a vast amount of chakra and the ability to create and manipulate Truth - Seeking Balls. But Ichigo, when he reaches his final form, can also be a force to be reckoned with, having the combined powers of his Hollow, Quincy, Soul Reaper, and Fullbringer heritage.
Well, it's a really tough call. But some might say Goku from Dragon Ball is the strongest. He has the ability to reach extremely high power levels through intense training and various transformations. His Saiyan blood gives him an edge, and he has fought against some of the most powerful foes in his universe and come out on top. Plus, his Kamehameha wave is a very iconic and powerful attack.
It was Tite Kubo who crafted the Bleach manga. His imagination and creativity shone through in the world of Bleach, captivating readers with its action, drama, and supernatural elements.
One popular type is the 'what - if' scenarios. For example, what if a certain character had made a different choice during a crucial battle. Another type is the character - centric stories that focus on the backstory or the untold adventures of a particular character, like exploring Rukia's life before coming to the human world in more detail. And there are also AU (Alternate Universe) fanfictions, such as a modern - day setting where the Bleach characters are normal people with their spiritual powers hidden.
Another strong robot is Gort from 'The Day the Earth Stood Still'. Gort has incredible power, being able to disintegrate weapons and is highly resistant to attacks. It is a menacing and powerful presence in the movie.
Xena, Warrior Princess, is among the strongest fictional females. She is a master of combat and has a strong sense of justice. Buffy Summers from 'Buffy the Vampire Slayer' is also very strong. She battles vampires and demons regularly. Then there's Captain Marvel in the Marvel universe. With her powers, she can take on powerful enemies and is a symbol of female empowerment.
One could argue that Superman is among the strongest. He has superhuman strength, can fly, has heat vision, and is nearly invulnerable. He has saved the world countless times in the DC comics universe and has faced off against some of the most powerful villains.
In the world of fiction, characters like Thanos are also extremely powerful. He has the Infinity Gauntlet which gives him the power to control reality, time, and space among other things. He can wipe out half of all life in the universe with a snap of his fingers. His strength and the scope of his power are truly terrifying.