I don't think there's any real proof at all of Sakura "crushing" on Sasuke after time skip. She doesn't really seem to be bent on him or even really think about him. I mean, when she sees the guy, it's always this blank look and "Sasuke-kun--" which always seemed more connected to surprise than anything else.
Kishi went out of his way to give post-timeskip Sakura a totally different attitude in regards to Sasuke than pre-skip. Pre-skip Sakura is completely obsessed with Sasuke. Post-skip Sakura has a "given-up" attitude to Sasuke, that she sees him as a lost cause. Any time she's on the boat for getting Sasuke back, it almost feels like she's being dragged along by Naruto's desire to do so-- like she's going with it because it's what Naruto is so bent on, and she has to go with it because she's worried about him.
Certainly, she's never as passionate about Sasuke as Naruto is.
I don't think there's any way you could argue that Naruto isn't more focused on/bent on/obsessed with Sasuke than Sakura is. Heck, Sai even reacts to NARUTO'S feelings for Sasuke, with Sakura having to try to explain to Sai the strength of feelings between Naruto and Sasuke-- she's focused on NARUTO's feelings. Sai too, keys in on how Sakura doesn't really seem to care about Sasuke but is constantly worrying about Naruto.
She's always shown worrying more and thinking more (constantly) about Naruto. She even seems constantly annoyed that Naruto still thinks that she loves Sasuke, and gets down-right pissed at him for his assumptions even after she clearly confesses her feelings for him.
I can understand people liking Naru-Hina more (because Hinata is inevitably a more attractive character to a lot of fans), but at this point I think you'd have to be blind to think Sakura cares more about Sasuke than Naruto-- you'd have to be blind to not think that Sakura loves Naruto.
If you really want Naru-Hina to happen, pray that she gets enough screen time and character development to beat Sakura in a direct love rivalry--
and none of this grand-gestures on the battle field crap; Naruto won't fall for her because of that. If Hinata is going to be Naruto's lover, she's got to develop a more real/genuine relationship with him on a personal level-- in personal interactions. As the story is going right now, this doesn't seem likely-- and she really doesn't stand a chance. She just is not getting the time/development for it; it's pretty damn clear that Kishi is setting her up to be sac'd as this wonderful girl who inspired him with grand gestures, but failed to capture his heart.
@development on a personal level-- She's so far behind Sakura in this regard, that I just can't see that relationship happening.