Well, first of all, I apologize if I'm bumping this topic. I think having it "pinned" means that I don't have to worry, but even so...
Second, I think it's fair that if I'm a NaruSaku fan, you know the reasons as to why I would love them to be a couple in the end.
Finally, what I will say could be very similar to other people's opinions for NaruSaku, though I believe I have a different approach.

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Well, before stating my reasons, I should say first that the base for all of them are my meaning of love, which can be summarized in this quote:
“Love is a decision, it is a judgment, it is a promise. If love were only a feeling, there would be no basis for the promise to love each other forever. A feeling comes and it may go. How can I judge that it will stay forever, when my act does not involve judgment and decision.” (Erich Fromm)
Now then, what is necessary for someone to love another person? Mainly four things:
Care, Responsibility, Respect and Knowledge. And another important factor for any relationship to develop is:
Communication.With all of this as a base, here are my reasons to be a NaruSaku fan:
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Knowledge: Even though at first, Naruto's feelings for Sakura could be considered a "childish crush", during the progress of the series, he has gotten to know her first-hand. He knows what she likes, what she dreams of, her abilities, and her weaknesses too. The image of a "perfect" Sakura is now replaced with the "real" Sakura, and his "crush" now changed to a decision: a decision to make her happy (the promise of a lifetime).
Sakura also has gotten to know Naruto first-hand. Her image of the "dork who wanted attention" (sorry if it sounds cruel) changed to the person who was determined to never give up and to be acknowledged as a friend. During the series, we've been witnesses of her personal growth, and we've noticed her change with Naruto. Now we see that she's determined not only to help him, but to protect him. Her knowledge of Naruto has surpassed even those of any other character in the series (except for Kurama and Jiraiya maybe...)
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Responsibility: I don't think I have to dig much in this one, but to state a point... Naruto is determined to help his friends and he has taken action about it. That's what responsibility stands for: making action of your words. And we know without a doubt that he'll do anything for Sakura.
We can also say the same about Sakura, she has even set aside her feelings to protect Naruto. Plus she's determined to grow strong and to help Naruto no matter what.
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Respect: This can be a pretty touchy subject, since respect implies many things. Despite this, we know that Naruto respects Sakura's feelings and is ready to set aside his own feelings to help her realize hers. Of course, we don't want this to happen, but I state this because that how far Naruto is wiling to respect Sakura.
Now, Sakura has also shown respect towards Naruto, since she knows Naruto's pain and she has shown empathy towards him. We've seen this bloom during the second part of the series (and we've seen hints since the first series, as far back as to episode three, I think). And I believe that she is also ready to cast aside her feelings in order to protect him (again, we want her to confirm her feelings for Naruto, but I'm speaking about her illusion with Sasuke, which she clearly demonstrated to cast aside when she tried to kill him)
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Care: Ah, the interest for the other person's well being and the desire to help them grow. Do I have to explain that both of them have done this? The series has proven each time that they care for each other.

Finally, the key factor for a relationship to grow:
Communication. Naruto and Sakura have share more moments than any other couple in the series. And during the second part of the series, both have improved the communication up to the point of trusting each other. They both know what they're going through, and even though they haven't had a solid scene where they can talk to each other about everything, I'm pretty sure they deserve to have one after all of the events about the war are done.
Having the definition of Love in mind, and seeing the proofs about how each requisite has been completed (if we analyze these factor with every other couple, mainly NaruHina and SasuSaku, we'll notice that none of them meet the standards), the two characters who should end up as a couple (as how a relationship in real life should occur) are Naruto and Sakura.
These are my reasons as to why I am a NaruSaku fan.
Edited by Shadow Wolf, 14 February 2012 - 01:39 PM.