My favorite fight would have to be Hiei vs. Bui. From the humor to the incredible display of power, this battle is just plain awesome!
I mean, Hiei catches and incinerates an axe that's bigger than he is, Bui fends off the dragon of the darkness flame with his bare hands, Hiei consumes and becomes the dragon himself! What's not to love about this fight? Especially when there's Hiei and dragons involved.
Anyone else love this fight?