DarkRaiden;8063118 said:
At the end of the day, Superboy Prime was flown through the red sun and beaten by a Superman. Thanos has handled universal energy much better than Monarch and has drained Rot. I'd say he's the better energy manipultor and could drain Prime.
And yes in that instance Galactus stated he never had to exert himself like that to get past shields and went from being full in a panel before that to needing to feed right after. Ergo he took his best.
Red sunlight weakens Kryptonians, and a sun is a pretty huge source of red light. Thanos has never shown that he could replicate that level of radiation.
And top exaggerating the Galactus feat.
All he said was that he's never had to exert himself just to break a forcefield. That doesn't mean "Oh might I'm having to use all of my energy to bypass your field." He was basically just saying that usually he can bust through forcefields effortlessly and this time he actually had to try. That clearly wasn't all Galactus had. It only took one blast to get through the field, and Galactus seemed to imply that a second blast would kill Thanos. Considering Galactus has pretty easily destroyed whole galaxies in the past, you're not very bright if you think that little blast he used against Thanos in that scan was "everything he had."