3rd Raikage, Muu, Hashirama, Young Hiruzen, Minato, Onoki, 4th Raikage, I don't really understand the 2nd Mizukage's abilities so I don't know what to say about him
SO out of all the raikages, tsuchikages, Hokages, Mizukage and kazekage who can solo the 6 paths of pain if they have the intention to kill?