Charles and Bragg are different types of midfielders in my view and shouldn't be competing with each other for a place. Bragg plays the same role as Downes whereas Charles likes to drive forward more similar to Jander.
I don't think anyone would argue that Charles isn't the more accomplished player at this point, but Bragg has been excellent this season for his first season at this level and his age, and wouldn't rule out him becoming good enough for the top flight in time.
He's already proven to be better than L1 level imo.