Maybe Kakashi?
Kakashi and Hinata should really have died a long time ago. Back when Pain invaded Konaha. At least for Hinata she made a major impression on me with episode 166, and it's such a slap in the face that she survived that. Imagine if she went out with that episode. Sure, it'd be tragic and I do on some level want Naruto to end up with Hinata, but still, would have been such a sad and beautiful thing; Hinata finally declaring her love while protecting the man she loves.
For Kakashi I am kind okay with the rest that he's still alive. The animation in those eps where he "died" were fucking atrocious. I would've been pissed if he had gone out with that kind of impression.
Also, moved by Neji's death, but it's also a bit meh since it's been a while since that character had any character development. I mean, it's all pre-shippuuden when he helped trying to retrieve Sasuke and fighting Naruto and Hinata.