Neji has the most cool looking and very interesting techniques.
I don't most of the 8 gates because they speak of close combat, yet appear even "flashier" than some nijutsu.
However, that Night Guy technique is no contest the most jaw-dropping.
First, you don't shoot any projectiles, but instead dash forward and make physical contact with the target (WHAT TAIJUTSU IS ALL ABOUT).
Second, you dash so quick, you create a warp bubble to your target, instead of actually moving lol...
That ****ing awesome.