Harry would likely be more confident. Sirius is a bold and brave character, and growing up with him would instill those qualities in Harry more strongly. He wouldn't be as meek as he was in the early days at Hogwarts.
Harry would probably be more aloof. The Black family has a certain air of aristocracy. So, he might be less approachable than in the original story. He could also be more secretive, having grown up in a family where family secrets are highly guarded.
His personality would likely be more reserved. Growing up with the Greengrass family, he might not be as impulsive as in the original story. He would be taught to think before acting, a trait often associated with Slytherin. So, he would be less likely to jump into dangerous situations without a plan.
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.
If raised by Toriel, Harry's personality would be greatly influenced. Toriel is a character who values life and peace deeply. Harry would grow up with a stronger sense of these values. He would be less likely to seek revenge or be overly aggressive in the face of his enemies. Instead, he might try to understand their motives and find more peaceful solutions. His relationships would also be more harmonious. He would be more of a mediator, using his understanding of different perspectives (thanks to Toriel's teachings) to resolve conflicts. This would make him a very different kind of hero in the wizarding world compared to the one we know from the original series.
If Harry was raised by Sirius, his personality would be more rebellious. Sirius was always against the traditional ways of the wizarding world. Harry would be influenced by this and might question authority more often. Also, he would be more confident as Sirius would encourage him to be himself and use his talents. Harry would grow up with a stronger sense of self - worth, knowing that he was loved and supported by Sirius.
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.
Harry's personality would be quite different. He would probably be more cynical and less trusting. Growing up with Snape, who has a rather jaded view of the world, would influence Harry. He might be more sarcastic too. However, he could also be more disciplined. Snape would surely enforce strict rules at home, which would make Harry more organized in his studies and other aspects of his life. Also, his relationship with authority figures at Hogwarts might be more complex. He would respect McGonagall but might also question her more often, having been raised by Snape who often challenges the status quo.
He'd be more cautious. Natasha is a spy, always aware of her surroundings. Harry would learn to be like that. He'd be less likely to rush into things without thinking.
Harry might have a stronger sense of self - worth. In the original story, he grew up with the Dursleys who made him feel unwanted. But if raised by a phoenix, he would be surrounded by unconditional love and protection. This could make him more confident and self - assured, not easily swayed by the opinions of others and more determined to follow his own path in the fight against evil.
His personality would be shaped by the strict religious environment. He'd likely be more respectful of authority figures, having been raised by nuns. In the wizarding world, this could mean he has a different relationship with teachers like Snape. He might also be more empathetic towards those who are ostracized, like the house - elves, because of the values instilled by the nuns about caring for the less fortunate. Moreover, he would be more accustomed to a simple life, so the grandeur of the wizarding world might both amaze and overwhelm him at the same time.