Not to go against the grain, but what feats can Maestro stand on to even say that he would be a challenge to Doomsday?
Logic would dictate that after decades of sponging up radioactive fallout (I can't wait for that game to come out 😊 ) that Maestro should be a worthy opponent for any Doomsday, but again he lack feats to back up such a claim.
I can accept him beating Dos Doomsday, but that's as far as he gets IMO.