Well, first of all, I feel that Kishi purposely created these characters for each other. Hahah, might sound a bit too over-confident, but that's how I feel- truth or otherwise
They both complement each other, and people just can't help but feel that they bring out the best in each other. My friend, who supports SasuSaku, by the way, actually asked me with this hopeless voice 'Do you really think that Naruto and Sakura would end up together?' I kinda felt sorry for him, so I said that both pairings are kinda neutral at this moment...
Besides, everything, I feel, is getting quite interesting...