I've never been impress by Barda, I don't see her in the same tier as Wonder Woman. At best, I can see her stalemate Kara (Supergirl). Barda, lacks versatility, the strength, and weapons to go up against Diana... In my opinion, Diana takes the majority from Barda and finishes her off before Orion defeats Captain Marvel. It's going to be two against one in the long run. Orion is good, but not a match for both Billy and Diana.