I don't think a system is needed here. Everyone seems to be doing a fine enough job of handling their characters, and issues that did exist have been brought up and handled. The biggest knock against a system would be the fact that, effectively, the GMs would not be able to play too often...In a system, I think, the GMs should be the only ones handling character the heroes will fight, which may quickly limit where Warden and Silk get to play their own heroes.<br/><br/>No system is needed, in my opinion, just a bit more communication and structure in terms of, well, posting order and such.<br/><br/>As for the question...<br/><br/>Wonder Woman is as strong as Superman, and is considered one of the few that can go at it with him with even a hope of defeating him. I also believe, due to her blessings by the gods, she outclasses Aquaman in almost every other stat as well...If they fight on land, I would say she would beat him down after a decent fight. Underwater...a much closer, much harder fight, but still, I would give it to her.<br/><br/>As for the armies...I don't know much about Atlantis. But the Amazons were birthed of the gods, are effectively immortal, and train all their lives in the arts of war. I'd personally have to give it to them. Again, on land. I think they would have little incentive to take a fight to Atlantis on Atlantis's home turf.