Well, Naruto. I haven't seen much explanation about him, so here goes.
- The way he carries himself. He acknowledges that it was thanks to help that he was able to get to where he is.
- I actually like how he started as someone with nothing and couldn't do jack. He was the dead last, but then continuously working his ass off to outclass everyone, including his rival.
- He went from a lackey who wanted attention and acknowledgement of his existence, to someone who actually cares for even those who shunned him. It may sound ridiculous to do such a thing. But then again, there are several times where people do things that are questionable but right actions.
- His power itself. It isn't actually some auto body transformation. It actually seems more realistic that his powers mainly comes from a demon. Plus, I like his fighting style in a sense that it has a few techs, but they can arguably go much further in versatility than some people think.
- Naruto also tries to see from others perspectives. For instant, just as Naruto tried to kill Nagato out of vengeance, he thought about Jiraiya's words and sees that he wouldn't be any better. He then stops and wants to listen to his story. The fight with Sasuke is also another evidence of that as well.
- Doesn't change who he is as a person. Naruto may have gotten more power and fame; but he didn't change his personality of being eccentric and light-hearted. I like that in him.