Originally posted by starking
Don't get me wrong, I think Galactus is damn powerful and has enough raw power, to destroy the universe. I'm just don't think that's enough to deal with Imperiex.
The reason Galactus has the edge here is that he is amongst the best, if not the best, energy consumer / manipulator right now in MU.
If he only had his current level of energy, strength, and durability, to be honest he would probably lose. The thing is, feeding off of energy is his specialty. He has fed directly off of Mephisto's realm, he has eaten time / space directly in the black Celestial arc (which was an alternate timeline of Marvel 616 universe, and literally began to freeze time in that alternate timeline because he was consuming time itself), and his history begins with him surviving a big bang.
So we already know he can survive the big bang attack. We already know he can eat an entire universe. The only thing Imperiex would accomplish with a big bang attack is basically lay out a giant feast for Galactus to feed upon. It won't kill him, it will only give him more energy. We all know what happens when Imperiex's armor is cracked - he doesn't have control to stop the process once it begins. Galactus easily has enough power to crack the armor. Once the armor is cracked, Galactus begins to feed, and only grows more powerful as the fight goes on, as Imperiex has more energy than an entire universe.