Naruto not having the a bijuu in the start. He grows up to be a "bijuu hunter" while Sasuke being a true avenger and he's not easily manipulated by other people.
OR
The Uchiha succeeded on their Coup then the survivors from Konoha made another village and trained their people to fight against the Uchiha. Naruto starts befriending bijuus to gain power although in order for them to become "friends", Naruto has to fight them or complete a task that builds up their relationship. While Sasuke follows the path that Madara took. Eventually, the two had to fight as because of their own reasons. The other one is trying to create fake peace while the other one is creating true peace. This however, depends on their view about peace. Both of them thinks that they're creating true peace.