Naruto and Sasuke are by far the most powerful characters in Naruto as of its ending, but Naruto Shippuden and Boruto‘s storylines arguably failed to prove who is the strongest shinobi between the two of them. Much of the Naruto and Naruto Shippuden stories were built on the rivalry between its two main characters, which is why discussions of who is the most powerful ninja, Naruto or Sasuke, have always been part of the conversation around the show.

https://screenrant.com/naruto-vs-sasuke-stronger-more-powerful/