Naruto might be more brooding and less of the cheerful optimist. Obito's own experiences of loss and his somewhat dark view of the world could rub off on Naruto. He'd be more cautious and less likely to trust people immediately.
Naruto's personality would be a blend of his natural Uzumaki spirit and Obito's influence. He would be more secretive as Obito is not one to be very open. His sense of justice might be more extreme. Instead of just wanting to protect the village, he might want to change the entire ninja world order. He would be less likely to forgive easily as Obito has a long - standing grudge. However, he would still have his kind heart, but it would be masked by a more cynical exterior, which he would develop from growing up with Obito who has seen the worst of the ninja world.
His personality would likely be more disciplined. The Hokage's influence would instill a sense of order in Naruto. He'd be less likely to pull pranks just for attention.
Naruto's personality would likely be more stoic in some ways. Kenpachi doesn't show a lot of emotional vulnerability, so Naruto might suppress his emotions more. But he'd also be more fearless. He wouldn't back down from any challenge. And his sense of humor might be a bit darker, influenced by Kenpachi's more serious and battle - focused demeanor.
If raised by Shisui, Naruto's personality would be significantly different. Shisui was known for his wisdom and strategic thinking. Naruto would probably be more tactful in his approach to problems. His sense of humor might be more understated. He would also have a stronger sense of loyalty towards Shisui and would be more likely to follow in his footsteps in terms of protecting the village in a more covert way. He might not be as loud and brash as in the original story, but rather a more calculated and perceptive ninja.
His personality would likely be more brooding. Growing up under Nagato, he'd be exposed to Nagato's pain and trauma, which could make him less of the cheerful Naruto we know. He might be more reserved and calculating, as he'd be influenced by Nagato's strategic thinking.
If raised by Tsunade, Naruto could be more empathetic. Tsunade has experienced great loss, and she might teach Naruto to understand others' pain more deeply. His sense of humor might also change. Instead of his goofy and sometimes childish humor, he could develop a more dry, sarcastic sense of humor like Tsunade. His overall personality would be a blend of his original self and the qualities he would pick up from Tsunade, making him a more complex and interesting character.
He might be more reserved. Yagura's leadership in the Hidden Mist was often marked by secrecy and caution. So Naruto, growing up under him, could be less of the open - book character he is in the original. He may think twice before trusting others.
He'd probably be more cautious. Quarians live in a fragile environment, and Naruto would grow up learning to be careful. So, instead of his usual head - on approach, he might think more before acting.
His personality might be more confident. Mito was a strong - willed woman, and growing up under her care, Naruto would likely absorb some of that confidence. He'd probably be less of a prankster as he'd be more focused on learning the Uzumaki ways.
Naruto's personality could be a lot more family - oriented. Mikoto is all about family, so Naruto would likely pick up on that. He'd be more in tune with the importance of family bonds. Also, he might be less of an outcast as he'd have the support of the Uchiha family, which could make him more confident and less of a prankster.
Naruto might be more distrustful. Since Kabuto has been involved in many underhanded schemes, Naruto could grow up thinking that everyone has ulterior motives. This would be a big change from the original Naruto who was so quick to trust and befriend others. He would also probably be more self - reliant as Kabuto may not encourage the same kind of teamwork that Naruto was exposed to in Konoha. He would be more likely to rely on his own skills and knowledge, which could make him a more solitary figure in the ninja world.