Kashin Koji, with all the strength he has up his sleeve, is certainly stronger than Naruto at the moment.
Hashirama Senju, aka the First Hokage, was the only one who could ever beat Madara Uchiha in life.
Currently, Jigen is the strongest known character in the world of Boruto. His powers were great enough to take on both Naruto Uzumaki and Sasuke Uchiha at the same time. As the fight between the two unraveled, Jigen's superiority over both Naruto and Sasuke became quite apparent.
Kakashi's Susano'o would certainly prove strong enough to match Naruto if the two had fought. But, ever since then, Naruto has grown at a tremendous pace, while Kakashi had already peaked, and thus, lost a lot of his powers down the road. Meanwhile, Naruto went on to become the strongest shinobi in history.
Kakashi Hatake struggled to gain victory over Itachi Uchiha a few times over the course of the Naruto and Naruto: Shippuden saga. Kakashi was given a single Sharingan eye that he was able to turn into a Mangekyou Sharingan, and Itachi had access to two Mangekyou Sharingan.
Itachi Uchiha is the single most powerful character in the Naruto Universe. Masashi Kishimoto named himself Itachi Uchiha. He unlocked his power at a very early age, for example, unlocking his Sharingan at a very early age. When he was 11, he joined Anbu black ops.
Ten-Tails Obito. Something that was hinted at during the majority of the Fourth Great Ninja War is that becoming the Ten-Tails Jinchuuriki was the ultimate power. Having the abilities of the Sage of the Six Paths would make any opponent unbeatable, and yet, Obito managed to lose in a match of morals to Naruto.
In conclusion, Obito Uchiha would defeat Itachi Uchiha when comparing the two characters in their strongest forms. Obito has one of the strongest, if not the strongest, Sage Mode in the series and has enough chakra reserve to beat Itachi.
Boruto does not have a powerful tailed beast inside of him. This is a source of power unique to the jinchuriki and Boruto is not one. Without Boruto having that power, Naruto can remain stronger than his son.
Naruto and Sasuke are arguably the most powerful characters by the end of the Naruto Shippuden anime, so it goes without saying that Might Guy would stand no chance against Naruto in his Sage of Six Paths mode, or against Sasuke using his Rinnegan.
10 Could: Itachi Uchiha
Itachi was able to fight against Naruto Uzumaki in his Nine-Tails Chakra Mode, something that Pain could never do. He was also able to incapacitate Nagato Uzumaki, and it is quite easy to see that he could definitely have taken on and defeated Pain in combat.
Taking all things into perspective, Kakashi is unarguably one of the most complete shinobi in the entire Naruto series. Might Guy, on the other hand, lacks the ability to perform a Genjutsu for use strong Ninjutsu.
3 Naruto Defeated Sasuke With Half His Power
Despite that, he was able to keep up with Sasuke and even defeat him eventually, as evident from when Sasuke admitted to having lost to him in the end.
1) Hashirama Senju
Hashirama was undefeated in his lifetime. Hashirama defeated Madara Uchiha, who was said to be inferior to him even with Eternal Mangekyo Sharingan.
Furthermore, Naruto had a hand in the defeat of Urashiki Otsutsuki.
Considering how badly Kakashi and Minato's attacks devastated him in separate duels, Obito would not survive being punched by Tsunade. However, his kamui allows him to become intangible at any time, rendering it nearly impossible for his opponent to land a hit.
Naruto: 10 Powers That Make Kaguya Otsutsuki An Absolute God - IMDb. In the renowned series Naruto created by Masashi Kishimoto, Kaguya Otsutsuki is a character who can be considered to be the main catalyst triggering the various events and conflicts that take place in both the manga and anime.
However, if the Boruto two characters went up against each other, Kakashi would win despite losing his Sharingan. Kakashi losing his Sharingan means he cannot copy the ninjutsu that the enemy performs.
1) Madara Uchiha
This man was able to tame tailed beasts which really showcased his strength. As a child, Madara was able to awaken his Sharingan with one Tomoe in each eye. His mastery of the Sharingan and jutsu capabilities makes him far stronger than Kakashi.
Following the conclusion of the war, Kakashi is named by Tsunade as her successor, the Sixth Hokage, with his first act being to pardon Sasuke for his crimes. He holds this title for many years before finally passing it to Naruto, as revealed in the epilogue.
The legend of the Uchiha clan, Madara, is another Uchiha deemed to be far stronger than Itachi. Madara lived during the Warring States Era and his powers were honed to match Hashirama Senju in battle.