

Sasuke Vs. Raikage is a mind blowing intense battle in every sense of the word
Everything about this fight was insane
- The Raikage's being a Tailed Beast in a human form, and putting all of that immense chakra into his speed to escape Sasuke's Mangekyo, an impossible achievement, to avoid being sighted and ignited with Amaterasu on sight.
- Him making Suicide attacks on Sasuke through his Amaterasu engulfed Susano'o and fighting while Amaterasu is burning his arm, putting his life on the line to avenge Killer Bee
(Even the Ten-Tails and Eight Tails were screaming from the immense pain of Amaterasu.)
- Sasuke using Kagutsuchi to concentrate Amaterasu into spikes to increase its power exponentially further to vaporize through what it touches on contact and the Raikage still attacking through the spikes.
(For reference, it's similar to the 3rd Raikage focusing his invincible spear by lowering the number of fingers. The Amaterasu in its basic form can kill a Tailed Beast and turn it to ash. Imagine its power when it's concentrated with Kagutsuchi.)
Gaara's interference makes you sigh in relief.
It's really smart also how his sand stopped the Raikage's attack. It's similar to a pillow being struck by a hammer. The hammer can break a solid wall (Sasuke's Susano'o), but it can't break a pillow (Gaara's sand)
Ay then cuts off his burning arm like nothing.
The fight is most similar to Ten-Tails Madara Vs. 8 Gates Guy. While it's on a lower level, it's significantly more intense to me.
Orochimaru Vs. Hiruzen honestly looks like a child's play by comparison.