I will admit that Naruto and Sasuke should have had a lot more trouble with Kaguya than they did, because they had such a rough time against just Madara, but Madara DID have a lot of abilities that made him extremely dangerous, such as Limbo, infinite Tsukiyomi, planetary devastation, etc.
However, that doesn't make powerscaling stupid. Which it isn't, if you use it right.
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"Why is everybody so ****ing stupid?"- Kim Jong Il, Team America.
Sure, but the duo was clearly a lot individually weaker than Kaguya, they just had a sealing jutsu for the job, and they ended up needing Obito, Sakura, and Kakashi-with-perfect-Susano'o to win.
I'd think Juubito and Ashura Naruto would be pretty close in level.
Uh, she had a Truth Seeking ball bigger than any of the Biju balls! That's literally the biggest jutsu ever seen in the series.
And the space warping stuff she did was pretty powerful too.
Heck, her direct attacks, while not boomy, were able to penetrate right through powerful defenses. Considering these are people who could swat away biju balls, think about the power in those attacks, even if they were just stabby things.
Basically Power vs Speed. Juubito unquestionably dwarfs current Naruto in terms of power output, both with the stronger Bijuu Bombs, Goudama, and chakra claws. He also has a very powerful barrier technique that he could use to trap Naruto.
Naruto on the other hand has more variety and was able to blitz Kaguya, who could react to Sasuke's Teleportation technique. Obito was able to react to Tobirama's FTG too but Naruto has the better feats with speed. He also has a ton more variety since he could rely on all the Bijuu. Add that with his Shadow Clones and Naruto has a perfect blend of power, speed, and variety.
But if Juubito created the six point barrier and blasted the insides with Juubidama them I'm not sure what Naruto could conceivably do to protect himself. And while Naruto would likely be able to wreck him in a fight, assuming Juubito doesn't rip him to shreds with chakra claws, Naruto would probably try to save the Bijuu. If he engages in a similar chakra tug of war then Obito would probably win since it took an entire army to save the Bijuu and even a weakened Obito could steal some chakra from the much stronger Juubidara.
But hey that's my two cents. Naruto could do a Rin style harem technique and win the day pretty easily.
I think I'd probably bet on Naruto. They both have truth seeking balls. Juubito has a fantastic ability to absorb all non-sage ninjutsu... which is helpful against none of Naruto's attacks because everything he does is sage.
And Naruto has his biju-release rasenshuriken like lava rasenshuriken, which struck me as better than biju balls.
Kaguya would have killed both Naruto and Sasuke had it not been for Obito, Kakashi, and a little bit of Sakura's help. So no, he is not better or equal to Kaguya.
Besides if we use that calculation then Naruto should have curbed Juubidara and yet Madara accomplished his goals pretty easily despite Naruto having Sasuke's help.
Based on feats I'd frankly pick Juubito over Juubidara.
Well if we're taking knowledge of the characters into account then Juubito knows Sage techs hurt and will thus defend against them. His goudama could stop Sage Powered Bijuu Bombs and even four of the Juubi's attacks. That is more power than Asura Naruto has demonstrated lol.
If Obito brings up his barrier and fires the Juubidamas what can Naruto do to stop him?
He only had the help of two people that mattered, and one of them only got that strong after Obito died(Kakashi, when he became the strongest in the series for a few chapters).
He was able to warp out of her gravity pull and rip her phucking arm off, AFTER fighting the ten tails, Jyuubito, Jyuubidara, AND her for a while. That clearly proves him to be AT LEAST her equal.
It's not really PIS or CIS at this point. It's happened too often to be chalked as anything other than luck. But it's still a non-factor, for all intents and purposes.
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"Why is everybody so ****ing stupid?"- Kim Jong Il, Team America.
Uh, have you even read the series? Kaguya got her damn arm ripped off by Naruto, who at the time had NO help whatsoever.
Sasuke didn't do much either, and Obito wasn't much of a factor either. All he did was help Naruto avoid ONE deva rod, which he would have warped away from anyway. Like he did when he tore off Kaguya's arm.
What? Jyuubito doesn't even HAVE any feats. At least nowhere near what Jyuubidara and Kaguya, or Naruto and Sasuke do. Jyuubito's best feat is stopping a sage mode, biju bomb from a half power Kurama. His strongest attack, the God's blade, got shattered by Sasuke's regular Susano'o covering Naruto's weakened Kurama. Sasuke's perfect Susano'o, and Naruto's Asura Kurama are both stronger than the Susano'o Kurama from them earlier on.
Naruto overpowered Kaguya's massive Biju bomb, which was demonstrably more powerful than anything seen previously, by anyone. It was a small moon sized Biju bomb. And Naruto overpowered it.
You're forgetting that even regular sage mode Naruto injured Jyuubito.
His durability is literally nothing compared to Asura Naruto's, and so is his strength. Naruto blitzed Kaguya, so his speed is clearly much greater too.
Jyuubito has NOTHING going for him here.
Naruto would warp out of the barrier, if he couldn't just break through it, and he would tank those biju bombs from the tree, considering he dealt with ones from Kaguya that made them look like pebbles.
__________________
"Why is everybody so ****ing stupid?"- Kim Jong Il, Team America.
None of that was possible for Naruto to do by himself. In fact Madara actually "killed" him and he's far less powerful than Kaguya.
As for this thread, I'm in favor of Juubito on this one. While Naruto's Sage chakra is certainly potent, Juubito is aware that it hurts him and as shown the most versatility in using the Juubi power of anyone that's had it.
Uh, Naruto ripped her arm off by himself. He was even in the field of her gravity. Madara did "kill" him, but that was normal biju mode Naruto. Their is a ridiculous difference between normal Biju mode Naruto who was almost killed by normal Madara, and Asura Naruto, who in base mode fought on par with Jyuubidara.
__________________
"Why is everybody so ****ing stupid?"- Kim Jong Il, Team America.
Naruto was only able to do that because he had help. Kaguya kept them on the defensive for most of the fight and Naruto wasn't doing anything close to fighting evenly with Kaguya when Sasuke was stranded in another dimension.
Naruto wasn't getting hurt at all by Kaguya. In fact, all she accomplished at that point was looking dumb by failing to a jutsu that Ebisu was able to overcome, and wasting a ton of chakra.
Naruto, when being serious, straight up warped out of her gravity field, and ripped her damn arm off.
__________________
"Why is everybody so ****ing stupid?"- Kim Jong Il, Team America.