ITC: Kishimot taunts and mocks us by reminding us Obito was essentially Naruto incarnate, yet still ends up becoming a total A-hole in the end.
Confirmed that Zetsu is what kept Obito alive
Madara is the apparently actual protaganist.
Also something just occurred to me: With Obito as tobi, it means Kakashi and Naruto are on a similar path. Kakashi will want to save and return Obito to the village much like Naruto with Sasuke. Just one is being evil for power and one is doing it for "peace"