Both Aizen and Byakuya have looked beyond badass while using it, and it's ridiculously powerful too.
Final Getsuga Tenshou.I just love the way Ichigo looked in that mode.Plus,I enjoyed Mugetsu too.
Cero. Kicking ass with just one finger? Come on, how is that not beastly!
My favorite attack is probably lanza del relampago. The name itself is cool, and I like the way Ulquiorra forms it by putting his hands together in front of him and pulling them apart.
I also liked Shinji's cero, Rose's sonata #11, and the whole Shibari/Hiasobi/Juzu Tsunagi combo from Kisuke.
That finger hit-move that Isshin pulled on Aizen. The damn thing looked so cool and sent Aizen flying through multiple buildings. But then again Isshin is pure epic.
Now i am not sure if that was pure power from Isshin or some Kido but it was damn cool. I am saying this because usualy when people use some Kido they say its name but Isshin said nothing. Personaly i belive it was something else.
Ichigos bankai Getsuga is always awesome, black, ripping effect, versital forms. Gotta love it.
Grimmjows Dessgaron is cool.
I really like shunkou to, its on par with bankais, how awesome is that.
Ichigo's left hand gripping attack. Seeing him and his hollow stop superpowerful attacks in their tracks, and carrying Aizen like a rag doll by the face was the best.
Epic is epic, a sword that shoots.
Wow, it serves as a gun too.
I like Getsuga, Cero in all variants, Isshin's finger flick, Kensei's Shikai attack that sliced Hollow with air in pieces and also Yama's Shikai fire pillars. It was so infernal and diabolic.
Umm... Two-hit strike sure kill by the Suzumeabachi by that ninja girl-captain. But I'm really looking for her bankai mode.
1 - Ichigo's old good Getsuga Tenshô. Classic, simple and straight-forward move with nothing reaaally that special, but still it's always pretty awesome to see it performed. I like how the main character's theme colour is Black, and I like also how the usual shonen lazor is being launched from the blade of a sword instead of bare hands like so many other character do.
2 - Komamura's Bankai. Reminds me of the Stands in Jojo's Bizarre Adventure. This badass giant warrior being summoned out of nowhere and blowing away whatever meets its blade. Sheer epicness we got here.
Not a specific technique but the way ichiginator grasped and cancelled the Ulquiorras ultra-destructive technique.
Isshing's finger flicking technique. Aizen's face, and the way he got blasted through multiple buildings was just AWESOME.
Each technique of Urahara's shikai, I must also add that his shikai is the best looking one.
And ofcourse, Mugetsu. It was PURE PWNAGE.
And that level 94 kido from urahara was very nice too.