The 5 Kage win. Narutos clones are fodder food. Dunno why people always say they're Kage level, it's fact that Narutos KCM clones were all heavily supported. Not once did his clones fight any Kage level opponents singlehandedly.
Against Mu, Gaara helped him land that blow
Against 3rd Raikage, his clone was saved from death twice by Dodai. Then received Intel from Gyuki
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- Naruto always had support, his clones never fought alone
In a battle against multiple powerful opponents without support or back up, they merely act as distractions and make for some extra supports, allow feints and to add for more combinations. However they lack a final blow and only separate chakra (something Naruto will really need against the 5 Kage).
As Kakashi already explained that clones won't work in such situations-
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Why didn't Naruto use clones against the Edo Jinchuuriki? Because without anyone to support those clones, they become fodder. See what black Zetsu did to a Naruto clone, sent him running into a tree. Would've been wiped out by the Jinchuuriki. The 5 Kage took on edo Madara who is >>>>>>>>>>> KCM Naruto. So not sure why they're being underestimated.
Ay alone was manhandling KCM Naruto and Bee at the same time. Naruto barely avoided his speed once. Ohnoki makes him lighter and then Ay gives Naruto hell. And honestly just Ay and Ohnoki is enough, adding the other 3 is overkill. Dunno why people think KCM is on edo Madara level where he can be taking on the 5 Kage. Narutos shadow clones are overrated in combat, they aren't offensively threatening to Kage levels. Each of the Kage fought 5 Susanoo clones (wood clones, much better than shadow clones). So why wouldn't they be able to combat KCM clones just fine?