Wasn't it said that Naruto can't use rasenshuriken in base repeatedly, give the guy a break, just because he,was abusing rasenshurikens before doesn't mean he can constantly keep it up, everyone has limits. Most of the time the only reason Naruto could use rasemshuriken so much he was usually backed up by sage mode, KCM, BM, BSM, or Rikoudo (sage) mode. Base Naruto himself was at his limit, the rasenshuriken takes up a lot more chakra than that and can even harm the user, sure he had kyuubi's chakra but even then he's still in base, people forget base Naruto isn't the same as the Naruto they've been seeing constantly. I can't even remember the last time Naruto FOUGHT in base as even against juubidara he had sage mode active.
Then there's Sasuke with Chidori, lightning is an inferior element to wind, hence why he backed it up with ameterasu. If we really want to talk about what if scenarios, sasuke should've used Kirin, the tech itself doesn't even use much chakra on his part and if Naruto tried to strike him he would either get electrocuted or be too late or get absorbed...again. God forbid sasuke figured out another path. The kyuubi was also running low so another ameterasu with kagetsuchi spikes on Naruto would've killed the latter, but saauke didn't. People forget that adrenaline makes people naturally think differently than they normally do. If sasuke had enough chakra for another chidori and ameterasu and kagetsuchi he can obviously do other techs, heck chidori, amenojikara, gg since Naruto is in base he wont survive. Heck if they really wanted to they could've did their summoning's and Naruto would've most likely won as he has more toads to his advantage but saauke also has tricks. They can do this, they can do that, but they didn't.
Elemental WIND rasengan is superior to chidori because wind basically beats lightning anyway so naruto's rasengan has an elemental advantage anyway so...i don't understand people's "arguments", the way it ended was as expected, there was noway sasuke was winning as if he did there's be a LOT of problems. So a tie it Naruto winning made more sense.
