I agree that the MP is not very balance in terms of matchmaking and once you past a certain point in levels you get very overpowered. Even now as a level 14 Hades I feel extremely overpowered. Poseidon above level 20 is pretty overpowered too. I've yet to use Zeus and Ares outside of the beta but I've fought a pretty amazing Ares. I can't wait to become level 25 so I can get the Blade of Hades.