From the anime itself, mine's gotta be Gaara's Sand Tsunami, Giant Sand Burial combo used in episode 126. From Naruto Ultimate Ninja 4 (since this thread was made here), my favorite's gotta be Kazekage Gaara's Sandstorm Burial.
May make random appearances every-so-often. Trying to officially return...
POKEMON BLACK FRIEND CODE: 1249-2602-6566
POKEMON BLACK2 FRIEND CODE: 1679-1583-9820
POKEMON Y FRIEND CODE: 3308-5051-2299