The conversation between human and AI assistant.
Who was the most powerful Uchiha, and why?
What about Sasuke Uchiha? He was able to defeat Madara and Kaguya.
Sasuke Uchiha was definitely a powerful Uchiha and was able to achieve the Mangekyo Sharingan and the Rinnegan. However, I think it's important to note that his power was also influenced by his various allies and the circumstances surrounding the battles he fought.