Originally posted by Tenebrous
Galactus has been trapped by the Infinity Gauntlet, twice. He was held captive during Annihilation due to his battle with Aegis and Tenebrous.Those are the only times I remember Galactus being physically restrained.
He exiled himself to another dimension another time...that's most similar to Imperiex being banished to the beginning of the big bang. Primary difference: Galactus traveled under his own power to the alternate dimension...Imperiex was removed from his present time and shunted to the beginning of the universe, where the big bang seemingly dispatched him.
Galactus teleports Imperiex to the beginning of time. BFR for the win...the big bang then ends Imperiex.
This is not neccessarily as clear cut as you are making it out to be. For one, to get Imperiex to that point, Superman combined with Kismet (dc's version of eternity) and broke Imperiex's armor. Such a blow would have devasted Galactus as well.
The remaining energy was stolen and upsurped by Brainiac 13. However, Imperiex turned out to be alive and well after it's consciousness returned. At that point Brainiac had considerable control over Imperiex's power to the point that Imperiex couldn't free himself..but once out...STILL had enough power to destroy the universe.
Superman had 2 choices. Free Imperiex and the universe would be been destroyed, OR let Brainiac continue to power from the Imperiex energy and have Brainiac be master the the universe...or so they thought. (*more on that in a minute.*)
Not much of a choice there... at that point, all Imperiex cared about (like Galactus..both are supposedly above the notion of good and evil) was setting off the creation of a new universe. Superman simply pushed warworld back in time where they would be minimal damage (I would have figured..the opposite...the END of time to begin everything anew...but oh well..) where *Imperiex overpowered Brainiac 13 and detonated.*
Now, considering that Galactus has been transmuted to energy and his energy was a single star...that doesn't bode well on Galans behalf.
As for Brainiac taking charge of Imperiex's energy after an EXTREME circumstance..let's remember that annihilus did pretty much the same exact thing to Galactus...and even had the option to kill him. Imperiex has never been killed and was in no danger of being killed.
Lastly, Galactus cannot withstand the power of the crunch for long...and that is what Imperiex embodies.
Therefore, Imperiex wins.