Originally posted by Rage.Of.Olympus
The God Killer's supposed power is way beyond the Galactus Engine from what I remember. I don't think 451 was just pulling Stark's leg about its capabilities. Still, it hasn't done anything notable yet on panel.
Not even going by 451's dubious statements, would I say that GK was presented as "way beyond" (or even beyond) The GE.
It was said to have turned the tide of the battle, it was the Aspirant's big weapon and that's about it. Now it could have killed a few Celestials, it could have killed loads, but the scope and scale were not stated, just left to your imagination.
The whole thing hinges on the idea that a) 451 was being literal in stating that there were trillions of Celestials (or rather an "infinity", given how we don't actually have any idea of how many stars there are), b) that GK actually killed lots of Celestials (remember, Sentry's stalemated Galactus off-panel, Spiderman said so, who believes/accepts that?) in battle, rather than say causing them to back off or something ... and c) that 451 has any idea of how powerful The Celestials are (he patently lacks for brains).
I don't buy it and I need on-panel evidence to take GK as being anything more than cosmic "Hulkbuster" armour.
If we take character assertions as fact, then Hulk >>>> Galactus, given a) Beyonder's assertion and b) Sentry >= Galactus.
And frankly, Spiderman and Beyonder are >>>>>>>>>> more intelligent than that Ultron knock-off and far more likely to know what they're talking about.