I think the first time I saw a Curt Swan Superman pushing a planet: this struck me as silly/absurd, not so much the feat itself, just how it was drawn. It showed Superman in typical, horizontal, flying position, with the planet (ie, its surface) depicted vertically, like a wall (I think the sky was blue and there was a tree in the background). It was like, y'know, pushing any other object: just place a hand on it and shove. That simple, like if I myself pushed against the soil. Just seemed...too calm and ordinary.
Of course, I could never take seriously those Cosmic Depot planet-towing chains.
1.Superman pushing Warworld which equaled the power of a Big Bang
2.Superman pushing Warworld which equaled the power of a Big Bang
3.Superman pushing Warworld which equaled the power of a Big Bang
4.Superman pushing Warworld which equaled the power of a Big Bang
5.Superman pushing Warworld which equaled the power of a Big Bang