Kishi is manipulating the fandom, Narusaku in part one, a bit of Naruhina in chunin arc, a big fanbase for narusaku a small one for naruhina. Part two? Narusaku until the battle of Pain, where we see Hinata's feelings. Part 3 (Yeah, i consider Five kage summit onward a part 3) Naruhina all the way, but Kishi dosent want Narusaku to fall just yet, he wants the pairing war to go to the end since if it all ended the manga would lose one of the fanbases, So he made "road to ninja" Which is not canon, but he made it, so the fandom wont fall just yet. He made Naruhina, a small pairing, turn the tables and get all the popularity, in case you were wondering, that is why they call him a genius, Because he knows how to controls his fanbase.