Sasuke, Naruto, and Kakashi vs. 2nd Mizukage, 3rd Raikage, and 2nd Tsuchikage
Sasuke is EMS [he can use all his abilities shown without going blind. Naruto can only use KM1. Kakashi is current [assume his chakra is full]. The Kage's can use everything they've shown.
Naruto's team knows - The Raikage fought an army of 10,000 and died because of chakra use. The Tsuchikage uses dust release and is dubbed 'The Invisible Man'. The Mizukage uses genjutsu. The Kages know - Naruto can use the nine - tails power and is very fast. Sasuke has the Sharingan [full intel on base Sharingan, none on MS] and has fire and lightning nature releases. Kakashi has the Sharingan [full intel on base, none on MS] and know he has copied over 1000 jutsu.
Danzo vs. Sasuke area. Each team standing on opposite ends of the bridge.
About 50 meters.
The battle can't be won by Kakashi just using Kumai! He can use it but don't assume he can just send the Kages to a different dimension.