Hahaha, Akuma. I still cannot think of a way to conceivably counter a Raging Demon. It's the equivalent of Batman 1 Million's soul sucking Batkick.
Uberfied, moon busting Akuma: Fake 4
Non Uber Akuma: Probly the FF. I think Sue can beat John or Kyle. If we threw in, say, Hal? They're screwed against him alone.