Naruto would be more self - assured. In the original, he was always seeking approval because he was an orphan. With his parents alive, he'd have that unconditional love and support, so he wouldn't be as desperate for others' recognition.
Naruto's view of the world would be less cynical. Growing up without parents made him face a lot of hardships and discrimination. If they were alive, he would see the world in a more positive light. His ninja way might be more about protecting his family and the village together, rather than just seeking to be recognized. His development would be more of a balanced growth in both power and emotional stability.