The first hokage and the first hokage and the fonder ofg the leaf village.
Rinnegan which gives him abilities which no Uchiha ever had. This doujutsu allow him to counter nearly all kinds of ninjutsu. And can even teleport between dimension which we only Kaguys to be able to do so.
Naruto is the strongest character of Naruto series no character comes near him neither in term of chakra level nor in term of physical prowess.