Board Thread:Versus Debates/@comment-26388300-20150708194704/@comment-5273810-20150708195900

Obito with one MS was capable of taking control of the complete 9 tails. Nagato lacked the power to handle half of Kurama's power. It doesn't matter if it was Ninjutsu or Genjutsu in how Obito beat the 9 tails. He did it. Nagato couldn't.

And this is talking about Obito with just one MS at age 14 when unexperienced. Imagine giving that to him when he has experienced and in his physical prime. Also you're giving him the Rinnegan even further enhancing the disparity.

Also Pain's only advantage is if his opponent has no knowledge on his technique which Obito does know all about.