The Chosen One
Why do a lot of people think Anakin's all powerful because he's the Chosen One? In EU, a lot of people have extinguished the Sith, (light side) Revan, the Exile, Luke Skywalker, etc. Some would also argue that Luke killed Vader too.
Anakin destroyed two Sith Lords. Obi killed half of them at the time, but he's not all powerful (though still pretty tough). Heck, Anakin STOPPED Mace from destroying the Sith, so why is it so important that he's the Chosen One if someone else could've done it too?