I didn't see a lot to indicate the Consular is really all that powerful. Spent most of the story doing diplomacy, whereas the Inquisitor has some of the most powerful Sith out there gunning for her from near day 1.
The Jedi Consular is more powerful than anyone else in the Force. The shielding technique he learns is incredibly power and most that use it die after only a few times. The consular uses it a bunch of times and is no worse for wear. The fact that he can do this shows how strong he is in the Force. Just because it isn't flashy like force lightning doesn't mean he isn't the strongest in the Force.