Board Thread:Naruto News/@comment-26490760-20150620025728/@comment-734582-20150627115340

Ashzure wrote: I can say that is the real power of Naruto's while Sasuke power obviously the sharingan and rinnegan. I disagree. Naruto's power is indeed perseverance, which he needed to use his raw Kurama power to the fullest. Kurama cooperated with him because Naruto did something nobody did before: Naruto approached Kurama as a friend (eventually), not as the demon others saw him. Kurama probably has the most hatred in him because of things like Madara using him (and treating him) like a pet, and so has the most bad experiences with humans. He can also sense Negative emotions which is why he probably was so damn angry, he was drowned in other people's angers and fears.

Sasuke's power isn't his eyes, but his anger. The Sharingan pretty much requires the Curse of Hatred to drown the wielder in anger before it's full potential is reached.

Boruto can still surpass Naruto, but we haven't seen his Ninja Way being developed, so until we see that we can't quite be sure what kind of Ninja he'll be. He definitely seems to have inherited Naruto's spirit.