Many of the NPC's in the cast do seem quite powerful, yes. Though i might be biased because they don't have their weaknesses described - except Phoenix's and Toro's weaknesses, which are pretty unrestricting. 

PC's powers, on the other hand, all with a couple exceptions seem very mediocre even though most of the weaknesses are of the "they get really tired and have strong migraines/vomiting bouts after using their powers a lot" sort.

Do all powers have to be on roughly same level or is it possible to make a character with incredible capabilities if he has a weakness to match?