If Naruto was raised by Vegeta, his character would likely become much more aggressive and focused on power. Vegeta's Saiyan pride and his constant drive to be the strongest would rub off on Naruto. He might not be as friendly or as empathetic as in the original series, but would instead be more solitary in his pursuit of strength, seeing it as the ultimate goal.
In a scenario where Naruto is raised by Vegeta, his growth would be shaped by Vegeta's no - nonsense attitude. Naruto would learn to rely more on his own strength and not depend on others as much. His chakra control might be different as he'd be trained in Saiyan - like combat techniques. He would also lack the influence of the Leaf Village's teachings on teamwork and friendship. Instead, he'd be more like a lone wolf, seeking to prove his strength against worthy opponents, and his overall character would be a blend of Naruto's natural determination and Vegeta's Saiyan warrior spirit.
Well, Naruto's character development would be drastically different. Vegeta is from a warrior race, so Naruto would be trained in a much more intense and combat - oriented way. His values would shift towards Saiyan values like honor in battle and self - sufficiency. He may not develop his strong bonds with his friends in the same way, as Vegeta isn't really one for deep emotional connections. His ninja way would probably be more about power and dominance rather than protecting the village and his loved ones.
If Naruto was raised by Pein in fanfiction, his character would likely be much darker. Pein's views are quite extreme compared to the more positive influences in Naruto's life like Iruka and Kakashi. Naruto might be more cynical and less likely to believe in the power of friendship so wholeheartedly. He could also be more focused on power and revenge, as Pein's Akatsuki has a lot to do with seeking power and changing the ninja world through force.
Naruto's character would change a great deal. Since Acnologia is a powerful and somewhat menacing figure, Naruto would probably be more aggressive. He might not value the same things as the original Naruto, like the bonds of friendship within the village. Instead, he could be more focused on his own strength and survival. He might also be more distrustful of others, having grown up under the tutelage of someone like Acnologia.
Naruto might become more conflicted. Since Madara had some extreme views, Naruto would have to grapple with those ideas. He could become more secretive as he tries to understand Madara's motives better without alarming his friends. For instance, he might start training alone more often to study Madara - inspired techniques.
Itachi's influence would make Naruto more empathetic towards the Uchiha clan. He would understand their side of the story better. This would change his approach to dealing with the conflicts related to the Uchiha. Also, Naruto would be more skilled in stealth and strategy. Itachi's training would focus on these aspects, and Naruto would develop into a more well - rounded ninja, with both power and finesse.
Naruto would become more of an anti - hero. His actions wouldn't always be in line with the traditional good - guy values. He might break rules more often and be less concerned about what others think of him. His appearance might also change, perhaps taking on some of Joker's flamboyant or menacing style.
His character would likely become more grounded. Since the Earth Country has a more practical and stable culture, Naruto might not be as impulsive as he is in the original story. He would probably be more attuned to the physical aspects of being a ninja, like earth - based jutsu and building strong defenses.
It would likely accelerate his growth. Jiraiya is a very experienced ninja. With his guidance, Naruto would gain more confidence. For example, if Jiraiya found Naruto early on, he could teach Naruto better control of his chakra, which was a struggle for Naruto in the beginning. This would make Naruto more efficient in battles and less reliant on brute force.
Naruto would likely become more disciplined. Kakashi is known for his strictness, so Naruto would have to follow a more structured training regime. This would make him more focused during battles and in his studies of ninjutsu.
Naruto would become more well - rounded. With Hiruzen's training, he'd gain more discipline. In the original, Naruto was a bit of a wild card. But under Hiruzen, he'd learn to control his impulses better. For example, in battles, he'd think more strategically instead of just charging in.
Naruto's character would likely be more reserved in some ways. Kakashi is a rather stoic and composed person, and his influence might make Naruto less brash. Instead of always charging headfirst into situations, he would think more. For example, in battles, he might analyze the situation like Kakashi does before acting.