So we can all agree that Sasuke guys story arc was the best thing in anime ever right? From the moment he kill Itachi his character development skyrocketed.
Hunting down Killer Bee was fun because it displayed the use of the amaterasu. Something that became a staple in his fighting style.
The summit 5 kage was great. Every second of it. You kept seeing Sasuke grew with hatred after every fight. It was amazing. Him chasing down Danzo at the end really capitalized on this. He was a true badass his arc was the pinnacle of this story, but after Naruto became the focus again shit got lame. I loved seeing Evil Sasuke slice shit up. Oh well.
tl;dr Sasuke was the only go and realistic character in thos entire story.