Hmm, Op didn't specify which version of Juubi he talk about.
Anyway let's analyze different versions of Juubi against Narutoverse(Current and dead)
Assumption: Naruto verse, you mean all shinobi alive or dead.
Assumption: Naruto verse(excluding Sage of six paths)
Then
Juubi perfect form full power(this version against who Sage of six paths fought )
By Hype: Juubi with no diffuculty, why ?
It was said by Kurama that Juubi is source of chakra in Naruto world, and considering it has Sharingan and rinnengan pattern we can assume it could use Amatersu, Kamui, Kotamatsukomi(wrong spelling ?), Tsyukomii, Sussano, in short all powers any sharingan can have + Six paths+ other uknown jutsu. it could split ground, swallow oceans, really ridiculous if you ask me.
Please remember that if you consider this version of Juubi, then it mean no Bijuu mode or chakra mode for anyone, no jinchurki, so only Rinnengan and Sharingan powers could try to do something to it, but these shouldn't exit too as Juubi has all powers undived itself.
But even if you consider all bijuu mode, chakra mode and Rinnengan and Sharingan exisitng somehow, Juubi still stomp.
Result: It is too OP to loose. Juubi no diff
Current Juubi full power:
by hype: Madara and Obito told that they won't be able to control it as now, it will become much stronger for certain. To control it Madara need to become Juubi jinchurki.
Result: Current Juubi full power easy diff
Current Juubi current form:
It is hard to say, it could go in both ways.
Current Juubi first form
Result: Naruto verse mid diff
Sorry I don't have much time, so I wrote a little in rest of versions of juubi beside First, but I am sure everyone else already said what I could mean
Sorry for any grammar or typing mistakes