Starscream, I dont know where you come up with the idea that gladiator struggled against the baxter building, he easily lifted it and when torch was blasting at him he one handed it. There was no stressed involved when he lifted the builded and lets not forget that he has carried planets and busted up planets with his fist. He also was about to punch cannonball from the earth to the core of the sun. Gladiator by far is one of the strongest beings mentioned on your thread and he could one shot that asteroid if given the chance or just easily push it in another direction.
Gladiator moving a asteroid that is much bigger then the one you presented. This asteroid covered an entire star lane and gladiator pushed it with ease without a problem.