It is difficult to determine a clear winner between Aizen and Goku as they are from different universes and have different abilities. Aizen is a powerful and manipulative villain from the Bleach series, while Goku is the main protagonist of the Dragon Ball series and is known for his incredible strength and fighting abilities. Ultimately, the outcome of a battle between the two would depend on the specific circumstances and the rules of engagement. Both characters have their own unique strengths and weaknesses, making it challenging to predict the result of a hypothetical fight between them. **

Ichigo Kurosaki defeats Aizen in Bleach. After undergoing intense training and achieving a new level of power, Ichigo is able to overpower Aizen and ultimately defeat him in battle. Aizen, who had been a major antagonist throughout the series, is finally defeated by Ichigo's determination and strength. **

It is difficult to determine a clear winner between Madara and Aizen as they are both incredibly powerful characters from different anime series (Naruto and Bleach, respectively). Both characters possess immense strength, intelligence, and unique abilities that make them formidable opponents. Ultimately, the outcome of a battle between Madara and Aizen would depend on various factors such as their strategies, the environment, and the specific circumstances of the fight. It would be an intense and unpredictable battle with no clear winner. **

It is difficult to definitively say who would win in a fight between Aizen and Kenpachi as both characters are incredibly powerful in their own right. Aizen possesses immense intelligence, cunning, and powerful illusions through his Zanpakuto, while Kenpachi is known for his raw strength, combat skills, and relentless fighting spirit. Ultimately, the outcome of their battle would likely depend on various factors such as strategy, tactics, and the element of surprise. **

It is difficult to determine a clear winner between Aizen and Meliodas as they both possess immense power and abilities. Aizen is a master manipulator with powerful illusions and high intelligence, while Meliodas is the leader of the Seven Deadly Sins with incredible strength and magical abilities. Ultimately, the outcome of a battle between them would depend on various factors such as strategy, circumstances, and the extent of their powers at that moment. **

Aizen wanted Ichigo's unique and powerful spiritual energy, known as reiatsu, in order to further his own plans for world domination. Aizen believed that by harnessing Ichigo's reiatsu, he could achieve his goal of transcending the limitations of a Soul Reaper and become an even more powerful being. Aizen saw Ichigo as a valuable asset and sought to manipulate him in order to achieve his own ambitions. **

Aizen and the Visoreds failed because they underestimated the power and determination of their opponents, particularly Ichigo and his allies. Aizen's overconfidence in his own abilities and his underestimation of Ichigo's potential led to his downfall. Additionally, the Visoreds' internal conflicts and lack of unity hindered their ability to effectively combat Aizen and his forces. Ultimately, their failure can be attributed to a combination of arrogance, underestimation of their opponents, and internal discord. **

No, Aizen never let Ywach fight in Bleach. Aizen was a powerful and manipulative antagonist who preferred to control situations and manipulate others to achieve his goals. He saw himself as superior to others and often used his intelligence and cunning to achieve his objectives rather than engaging in direct combat. Therefore, he never allowed Ywach to fight as he believed he could outsmart and outmaneuver his opponents. **