Bell vs Minotaur was the best I saw in a long time, together with a lot of fights from Unlimited Blade Works.
This is the Bell vs Minotaur fight:
https://www.youtube.com/watch?v=lntaZf1IstM (how do you embed videos, I'm sort of new here :D)
Luffy vs Lucci
Gohan SSJ2 vs Cell
Kill la Kill also has some great fights