User blog comment:N E R O/Olympic Coven Vs Volturi/@comment-173.73.54.84-20091207201948

Difficult. Bella's powers would give the Olympic Coven a good defense against the Volturi's powers. And so, the Volturi would'nt be invincible. Plus, the Olympic Coven have good and powerful allies, like Benjamin and Zarifina (that vampire with the illusion power). They also have the shape-shifters on their side. Plus, a lot of powerful covens who lost their loyalty to the Volturi are on their side.

The Volturi, being the head hancho of the vampires, have other covens on their side. There are probably other powerful covens that weren't mentioned in the book. However, a lot of the Volturi's powers have to do with mental manipulation. So, due to the defense Bella provides, the Olympic Coven wiould probably win. However, if Bella were killed, and the other Covens who were aiding the Cullens died, then, the Volturi wins by a landslide.