And this begs the question. Why is the Antichrist 2 "different" people? Why in Revelation does clearly indicate that the Antichrist is two different beasts/person?

I think its because the Antichrist has to unify the world, as clearly delineated by Revelation. And a "single" Antichrist would not be able to do it, simply because everyone in the world is so different and identifies themselves with what they oppose.

But if you have some one, namely Osama/Obama, who apparently represents two oppposites (the "West" and Islam), then yes, that is how you unify the world into supporting one Antichrist.

Brilliant really.