@Zerogodlike: Does Bach seem like the type to leave a potential threat alive if he can help it? I don't think so. In my mind, Bach (at least, with his eyes closed) is incapable of killing Aizen.
'kaguya is only highly resistant to chakra based techiques'
Sorry, what? When was this stated? Unless I'm mistaken, I think you might be getting confused. She can absorb any chakra based technique, but that has nothing to do with her durability. Fact is, she was taking hits from attacks with better DC than anything in Bleach and getting right back up.
Again, not saying she wins, because I want to see the limits of Bach's power. But you need to stop lowballing.
@5th said:Obito has senjutsu chakra, as does Black Zetsu, it wasn't a surprise that he managed to stab Madara considering Juubi kins have a weakness to Senjutsu chakra.
Actually that was complete PIS. Taking hits from 8 gates Gai and wanting to go for more, but can't take a casual hand stab from Obito/Zetsu? Terrible writing, I'm afraid.
You're right on that aspect of the fight, Madara being defeated by a hand stab by Zetsu was PIS
Honestly, the manga would've gone a lot better had Madara stayed as the final villain before Sasuke
I think pretty much everyone would agree that Kaguya should have never happened. At all.