If random ninja X (Pein) can simply overpower the Kyuubi I think it cheapens the Kyuubi to the point of absurdity. The First's techniques seem to involve canceling out or suppressing bijuu power and the Sharingan, I am assuming, works on Kyubii by screwing with it on a mental level in both cases the sheer power of the beast is bypassed or removed from the equation instead of being directly fought against by the opponent. But so far it seems like Pein is going about this fight with Kyubii Naruto in a brute force manner. If a natural born human can have enough chakra to simply overpower the Kyubii then what is the point of building up the Kyubii in the series as this uber strong powerhouse?

I don't really care if Pein beats Kyubii Naruto but if it's going happen I really hope it's because of some convenient special ability/technique Pein uses that nullifies or reduces Kyubii Naruto's power rather than just hitting him with such a huge brick that he passes out.