Lol, you know what i dont like about some of these threads, especially when they contain sasunoo, is that people think sasunoo lasts forever, like chakra isnt used.
Before sasuke entered the war, it has basically been shown that naruto has perfect chakra control, it has been stated by hinata the hyuuga who can probably sense his level of control of chakra, and it was shown when sasuke got upset when he saw naruto demonstrating his level of chakra control.
With that being said, naruto, as far as im concerned, and as far as the manga has shown us he has better chakra control then anyone alive right now, including sasuke, and he ran outta chakra. (Right before the Alliance showed up naruto had limited supply of chakra left, even the fox ran outta chakra at that point).
If Naruto, with his huge chakra supply, and just about perfect chakra control can run out of chakra, why the F*** cant the sage just outlast sasuke bad def of camping under yata mirror? And the same goes for any other character, why would they attack something that can supposedly deflect everything, all they have to do is wait it out till he has limited chakra then start the assualt. Also should he decide to start attacking then they can attack back becuase i doubt he can fight and block at the same time, considering how big the shiled and sasunoo are....