I think it will be Sakura, and not that I like Sakura because I like Sakura and Hinata as well, and I like both of the ships.
I am a multishiper.
However, let's be serious and let the preferences aside.
It has been hinted numerous times at NaruSaku, ever since part 1.
Sakura referred as Heaven, Naruto referred as Earth and Kishi in an interview said: Yellow and Pink will collide. Heaven and Earth will become one and that he is focusing on the relationship between Naruto and Sakura closely intensifying.
Let's balance things.
SasuSaku: one sided on Sakura.
NaruHina: one sided on Hinata.
NaruSaku: Naruto adores her, Sakura already started to show emotions for him.
And whoever denies that, it's blind, no offence.
As well, the little things as Hinata thinking at Naruto, Sakura thinking at Sasuke are for getting the reader confused.
Where would be the element of surprise if he would tell from the first time that they will get together?
He would lose some fans.
So he's feeding both of the sides, while he's doing his own thing.
Not to mention that let's be serious, Naruto and Sakura have the biggest development as a pair from the series.
Hate me as much as you want, but it's the truth.
I am being rational. In the end, for me is no suffering as I like them all. So no matter what for me is win-win situation.