Some time ago I watched a video on Youtube where Anakin was called the Sith'ari. He is not. However, it did get me thinking about the Chosen One vs. Sith'ari thing, and I noticed something.

Sith'ari
Prophecy fulfilled by: Darth Bane
Those who have read Darth Bane: Path of Destruction know that Darth Bane is the Sith'ari. There were two parts to the Sith'ari prophecy.
1.) Darth Bane was an extremely powerful Sith.
2.) He destroyed the Sith Order, which would come back even stronger (stealthier, would eventually rule the galaxy for 2 1/2 decades).

However, notice this:

Chosen One
Prophecy fulfilled by: Anakin Skywalker
As we know, the prophecy was that Anakin would destroy the Sith and bring balence to the Force. But, there are two other things:
1.) Anakin was an extremely powerful Jedi
2.) He destroyed the Jedi Order, which would return even stronger (in this case, more flexible).

I also know that Jacen Solo did not believe that the light and dark sides of the Force were complete opposites. He thought that they were merely different philosiphies. If there was something to prove that, this would be it. It's interesting how total enemies have a major thing in common, isn't it?

MTFSYW