Right now Pain seems to be the main bad guy in Naruto, no doubt He and Naruto will face each other. However at times it looks like Tobi is the one really giving the orders. At the very least they are partners.
The question is this, Who really is the Main Bad Guy in this Manga. It used to be Orochimaru, now it is Pain. If Tobi is really pulling the strings however, then even (Bad Ass) Pain is only a clever distraction by the Author (sorry Jiriah Sama).
Please cast your vote for Pain or for Tobi (or play it safe with both equally).