I could go on all day, but my point is that it all comes down to things like upbringing, personality and what bonds certain characters may have had (or not had) prior to the series start. With that being said, even If we were to compare say, NaruHina and NaruSaku in terms of honorifics, I think that NS would win, because even though Naruto adresses Sakura with "-chan", from your post I understand that "-chan" is sort of an exception and that instead of denoting formality it actually denotes closeness and affection. Also if adressing someone without a suffix means that you are close to that person, that means that Sakura adressing Naruto as simply "Naruto" at the very least means that the two are very close (either as friends or lovers, your choice

). Similarly this can also be applied to Naruto simply referring to Hinata as "Hinata". Meanwhile, Hinata has always referred to Naruto as "Naruto-kun", which means that even though she respects him and wishes to be closer to him she still distances herself from him by using that particular suffix. So basically, NS has one affectionate suffix and NH has one slighty formal suffix. It still gets a bit sketchy though, as once again it all comes down to personality and upbringing. Hinata is just polite. Naruto calling Sakura "Sakura-chan" simply comes from when he still had a shallow crush on her (i.e. when he didn't know her all that well, but still liked her regardless) and Sakura refusing to call Naruto with any suffix was originally a sign of disrespect towards him. So yeah, in the end it's all completely pointless IMO, just like my entire post.
As for the whole acknowledgement argument, it doesn't really matter whether Hinata was the first to acknowledge Naruto or if she respected him when noone else did. Like some of you already mentioned, in the end none of it made ANY difference whatsoever on Naruto's part. He was still all alone and was hated by pretty much everyone. He desperately needed someone, anyone to acknowledge his existence. But she never did. All she did was stand behind trees and whatnot, watching him. Sure, she may have been too shy, but if at the point she truly knew Naruto as well as some people claim, wouldn't she have known that that is exactly what Naruto's philosophy is about. Helping and protecting the ones you care about, no matter what. So, what she should have done was to reach out to Naruto and thereby overcome her shyness in order to help someone why desperately needed it. This may sound like im bashing Hinata, but im not. Im simply adressing a part of Hinata's character that, while not all that flattering, is still an integral part of what makes her who she is. Just like one of Sakura's worst traits is her emotions and how she often lets them control her, Hinata's worst trait is by far her shyness and her inability to muster up the courage to help those she cares about. This is, however a trait that she has slowly learned to overcome over the course of the series, like when she jumped in front of Pain to protect Naruto. In fact that was the culmination of most of her character development, i.e. overcoming her shyness (telling Naruto about her feelings for him) and helping someone precious to her (Protecting Naruto from Pain). The only loose end now is for her to know whether Naruto shares her feelings or not. Whether Kishimoto chooses to tie up this loose end remains to be seen. Meanwhile, Sakura has yet to overcome her greatest weakness, i.e. her emotional turmoil and her confidence issues. However the way I see it, Sakura's emotional problems are a bit more complicated than Hinata's. For one, Hinata's emotional turmoil pretty much boiled down to not being able to tell a boy that she was in love with him, while Sakura had an unrequited love for a boy(Sasuke), who besides not sharing her feelings also used to belittle her and call her annoying. Then said boy left the village and later on became a wanted criminal. A criminal that she suddenly had to kill while trying to protect the feelings of another boy (Naruto) who, unlike the first boy, always encouraged her and alwasy were there for her, but who also saw the first boy as a brother. A brother that he wanted to save, not matter what. Meanwhile, she is confused and maybe ashamed about her feelings for the first boy and she may even begin to develope romantic feelings for the second boy, all the while feeling inferior to both. So basically Sakura is currently trapped in a really f**cked up love triangle.

As for her confidence issues, well I've already covered that in anther thread somewhere, but it basically boils down her doubting whether she truly will be able to surpass her master (Tsunade) in light of her recent "failures", such as not being able to kill Sasuke and realizing that she can't really do anything to help Sasuke or Naruto with overcoming their plights.
Regarding Hinata protecting Naruto. she didn't!!
Hinatas cofesssion was selfish just like she admitted it was. all she did was jump in when Naruto wanted no one to. said her cofession and attacked pain. hows is that protecting, saving or helping? Naruto was in trouble nailed to the ground and she didn't think about him but herself. another burden. she made the situation worse and we could have got lost Naruto forever. do you understand that? so basically she knew damn well she was no match for Pain. it was a confession and suicide.
alos where the hell are you getting this thing about Sakura doubting herself that she wn't be able to surpass Tsunade? because nothing in the manga suggets these confidence issues. you just made this up.