I'm upset about a few things:
1.) Kishi doesn't like females. I'm mad that there hasn't been much of a focus on Sakura and her powers. She got some spotlight when she was fighting alongside Chiyo against the puppet master dude. But that was quite a long time ago. Ever since, we don't really ever see her fighting much at all. Even Ino and Hinata are quite useless. I'm even mad that Kabuto was a great challenge for one of the legendary Sannin, Tsunade.
2.) Why Kishi decided it was a good idea for nobody in the whole entire village to let Naruto know that Minato was his father. Maybe people would've respected him more if they knew he was the self-sacrificing 4th Hokage's son.
that's it for now. otherwise, this is my favorite manga/anime series. I hope this manga lasts a long time. I don't want it to end this year. People are speculating the end is near. But I don't think Pain is the final villain. And even if Naruto defeats the final villain, I hope the manga still goes on.
1. I'm not really a fan of many female ninjas anyway but now that I think of it, maybe if the girls stood out a bit more and did something useful for a change, I might actually like some of them. I don't mind Temari or Fuura (Sora Arc & yeah, I know she isn't a main character) but that's only because they hit it off a bit stronger than the other girls.
2. I think Kishi was always planning on leaving that to later as a surprise element although if the villagers had half the brains any of us readers do, they would have guessed Minato was his father.