I thought about it and i think bee could beat naruto's clones without going to tailed beast level (even if they use rasen-shuriken). bee can use samehada to absorb any jutsu - even rasengans.
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and if he combines it with a dance/pose (like the 8-sword pose) for having no weak spots, and maybe at lv2 mode for more speed, he will be able to destroy naruto's clones hands down, even if naruto throws rasen-shurikens from a distance - bee will absorb it with samehada. and he can use lariat at lv2 to make a way through the clones and straight to the real naruto. and if he uses tbb, he can aim it to the last second and simultainiously fight off clones.
I'm getting tired, good night.