Harry would probably be more rebellious. Remus and Sirius are not exactly the rule - following types. They've both had run - ins with the law in the wizarding world. So Harry would grow up seeing that sometimes breaking the rules is necessary for doing what's right. He might be less hesitant to take matters into his own hands.
Harry would likely be more confident in his magical abilities. Remus and Sirius are both powerful wizards. They would encourage Harry to explore his magic from a young age and not be afraid to show it off. This is different from the Dursleys who tried to suppress his magic. He'd also be more open - minded about different forms of magic, like the magic associated with werewolves and Animagi, which would make him a more well - rounded wizard personality - wise.
Harry's personality would develop in a very different way. Growing up with Sirius and Remus, he'd be constantly surrounded by tales of the Marauders. This would make him more mischievous in a good way. He'd have a better understanding of the grey areas in life, as Sirius has a bit of a wild side and Remus has his own struggles. Harry would also be more independent, as Sirius and Remus would encourage him to think for himself and not blindly follow rules. He'd be more likely to question authority, especially when it seems unjust. And his sense of humor would be more developed, as Sirius is known for his jokes and pranks. Overall, he'd be a more well - rounded and confident young wizard.
Harry would likely be more confident. With Sirius as his sole guardian in France, he'd be away from the Dursleys' abuse. Sirius would encourage Harry to be bold and fearless, and without the constant pressure of the British wizarding community's expectations, Harry could be more laid - back and easy - going.
Since McGonagall has a strong sense of justice, Harry would probably have an even more acute sense of right and wrong. He would grow up with her values of fairness and loyalty deeply ingrained. This could lead to him being more proactive in standing up for others who are being wronged, not just because of his own experiences, but because of the values he was taught by McGonagall.
He might be more refined. The Delacour family seems to have a certain elegance about them. Harry could be more sophisticated in his speech and mannerisms. He may also be more confident in social situations as he would have grown up in a family used to high - society magical events.
Harry would likely be more conflicted. With Bellatrix's influence, he might have a darker edge to his personality. He could be more aggressive in his approach to problems. Sirius, on the other hand, would try to keep him on the right path, so there would be an internal struggle. He might not be as quick to trust as the original Harry, but more cautious and calculating.
He could be more empathetic. Sirius has a big heart, and being around him, Draco would be exposed to his way of caring for others. This could make Draco more in tune with the feelings of those around him, whether they are pure - blood, half - blood or muggle - born.
Well, since Sirius is a bit wild and rebellious, Fem Harry might grow up to be more fearless. She would be exposed to Sirius's disregard for some of the stuffy wizarding rules from an early age. For example, she might be more likely to speak her mind in class or question the authority of the teachers in a way that a traditionally raised Harry might not. Also, she could be more confident in her own abilities as Sirius would probably encourage her to take risks and trust her instincts.
Naruto might develop a stronger sense of propriety. Since Koharu is an elder and values the old - fashioned ways, Naruto would likely grow up with a greater respect for protocol. This could make him seem more formal and less likely to pull pranks or act impulsively.
Naruto's personality would likely be more disciplined. ANBU are highly disciplined soldiers. So, he would be less likely to act impulsively. Instead of jumping into situations without thinking, he would analyze first. However, he might also lack some of the warmth that comes from his normal upbringing. He might have a harder time making friends because he's been raised in a more austere environment. For example, he might not be as quick to forgive as he was in the original story, as the ANBU way is more about justice and less about second chances.
He'd probably be more refined in his manners, as French culture often emphasizes politeness and etiquette. His accent would be different, of course. And he might be more confident in expressing his emotions, as the French are generally more open about feelings. Also, his view of magic might be more influenced by French magical aesthetics, which could be more about elegance and style.