Yeah, make power-based brackets but make them smaller as well.
Currently, there's about 30 people in each battlefield. And finding 90 people with about same power is really difficult on lvl 90 so it's guaranteed to match players with 60k power with the ones with 80k+. And that's just plain *. Why do I have to fight Hasahyo and FatherZodd, who has 100k power and has well paid for it, just because I have the same level?