Sasuke has always been the better Ninja.
really? Yes Sasuke was stronger at first but Naruto passed him and Sasuke knew this as well. Sasuke would have died if Kakashi didn't stop them and Sasuke knew Naruto was strong
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. To get stronger Sasuke had to take a pill, he didn't train for his power. It didn't just allow him to go level 2 CM, it also increased his base stats.
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. Before that it was Naruto who Saved Sasuke from Gaara.
Lets go to when they first met in Shippuden, many thinks Sasuke was far beyond Naruto and no, he wasn't far beyond. Naruto was severely weakened when he faced Sasuke, he fought Orochimaru just before and after going 4 tails it weakened him.
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Yamato said Naruto "Should" have the strenght to get back to the Village, Also the whole Sasuke surpressed Kurama, Naruto was going to surpress Kurama himself. Yamato told him he hurt Sakura so Naruto choose not to rely on Kurama's chakra since he had no control over it. Naruto told Kurama "Get lost" then Sasuke came
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. I'm not saying Sasuke wasn't stronger than Base Naruto fully heal, i am saying if they fought and Naruto was using Kurama's power like he was against Orochimaru then Sasuke would have died (4 tails tbb broke thru all 3 of Oro's shields, what does Sasuke have for that?).
The Next time they met Sasuke was no where near full strenght, but base Naruto is no slouch. Naruto have gotten stronger in base and was fast enough to rescue Sakura from Sasuke with only a small scratch. Sasuke nor Kakashi sensed Naruto coming and they both have pretty good senses. Naruto held of Deva pain in taijutsu while preparing to go SM, Deva Pain is a high kage level as is his other bodies yet Naruto was able to hold him off, yes his rinnegan ability was down but Naruto still handled him better than Kakashi did. Naruto took on 2 cloud jounins and handling them pretty well, only thing that held him back was having to protect Sakura.
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KM shown enough feats to beat Sasuke so no need to continue. with BM and BSM