If these two were to ever fight against each other (which I highly doubt will happen) Sakura wouldn't lose. I'm not saying that Hinata wouldn't put up a fight but Sakura would overall be to much for Hinata to handle. No matter how many hypothetical's people create the result will be the same. Sakura's Byakugou seal & brute strength would be a real problem for Hinata.
- Sakura wouldn't let Hinata get close enough to block any chakra points.
- If Hinata does manage to do so all Sakura would have to do is release her seal, that can't be blocked.
- Hinata would fold Sakura in hand to hand combat, but if Sakura lands one hit it's all over.
- Any injuries or damage caused by Hinata, Sakura could easily heal.
- Hinata will lose chakra throughout the fight while Sakura has access to a huge supply.