Pein would have knocked out Naruto if Hinata didnt get injured then Naruto wouldnt have gone 9 tails and met his dad and beaten Pein in the end...
That's not a good thing-Naruto going Nine-Tails. The good thing is Minato even coming up with a backup plan incase that happened. How many "points" do you think Hinata would have been given if it ended up badly and Kyubi destroyed what was left of Konoha?
She expect Naruto to sacrifice everything to do what she want.
There's no need to make things up.
Beside for becoming a Medical Ninja her character was basically useless. Even after she become a medical ninja she still pretty useless in Missions.
She's only useless where Sasuke is concerned.
She admire him but being far away and looking after him does not make her creepy or anything she just shy.
Admiring someone from afar, being aware of their loniness and sadness and yet not attempting to help out is not an admirable trait. Shyness or no shyness. There's no excuse.
Also Hinata character have develop where Sakura have basically been the same since day 1 of the Naruto series.
Sakura went from bitchy fangirl who hated Naruto and was useless to someone whohas now formed a bond with Naruto and has decided to improve herself in order to help him. The beginning of Shippuden has showed us that she's come a long way.
Hinata went from timid and unconfident to changing just a little bit after her fight with Neji. The start of Shippuden shows us that she is just as shy as she always is and the Pain Arc shows us a little taste of her growth (Twin Lions). It isn't until the War Arc that we see a more confident and serious Hinata-teaming with Neji to use Air Palm, going back to back with her cousin.
Luckily Naruto saw through the lyin' biatch.
You give Naruto too much credit. At the start of the confession his facial expression is of shock and disbelief. Then she mentions how she doesn't like Sasuke and well...that's when he believes it's a lie.
Do you remember the flashback Naruto had? It was of Part One Team 7.
Naruto didn't think the confession was false because Sakura was lying (whether she was or not), but because in his own mind he believes Sakura loves Sasuke and there's no chance she'll love him (Naruto). He was in denial.
Back then, Naruto also didn't want to admit that his best friend was a bad guy.
Hinata's a Hyuga, but she has never been known for being as talented as one.