Well I Like Hinata's sweet and calm personality. Gentle Fist + the Byakugan are fun to watch too. Sakura's fight against Sasori with Chiyo's help was pretty epic IMO, and her foreshadowing as the second-coming of Tsunade (possibly her superior) is a classic idea. I'm not too big a fan of Ino's move set so far but I felt like she was a good rival for Sakura in Part 1 (the rivalry seems to have been subdued though :/). Hopefully she'll invent something like mind-reading. I can't say much about Tenten... still a weapon specialist would be nice to see if she was shown more.
So either between Hinata and Sakura for different reasons.
