My god!
This was a shonen battle manga!
If you all want a romance manga with character development and content that actually indicates anyones feelings for one another (outside of the incredible number of feels that Naruto and Sasuke have for each other) go start a shojo manga thread!
There is only one pairing that makes sense with how things are written, and that is... none
The characters barely have enough depth to create emotional connections to one another.
Naruto became obsessed with Sakura after she was one of the only kids that would actually talk with him when he was a kid. I don't think Naruto actually knows what love is until he bonds with and then loses Jiraiya.
Hinata was obsessed with Naruto because he stood up after getting the crap beat out of him, and he stopped bullies that one time. I'd actually be worried that her relationship with Naruto would be super unhealthy, considering her level of obsession she's shown to have.
Sasuke... fuck Sasuke. He has the emotional depth of a sponge, and his 'emotions' are often changed and used as a plot device to make him a foil for Naruto.
Sakura is possibly the worst written character in this entire manga. She has a ton of great moments of awesome where she shines and seems to progress as a character. Too bad those moments are always followed by an instant relapse into her being helpless and useless. She 'loves' Sasuke, despite the fact that she knows next to nothing about him. When Sasuke first left, he pretty much told her as much. She hasn't learned anything about him since then, except that he wouldn't hesitate to kill her.
This was an awesome battle manga, and I will watch the movie. It was not in any way, shape, or form a romance manga. Ship whoever you feel like shipping, it's a free world. Just don't try and say that X should have ended up with Y in canon, that's the author's prerogative, and he made his choices, even though all of them were poorly written.