Galactus Engine was directly stated to be less powerful than Shuma Gorath and a bunch of Elder Gods.
A universal abstract (Death) casually owned entire Cancerverse. A universal abstract (Kismet) nearly died just rupturing Imperiex's armor who was a peer to B13.
That is a shitty showing for Galactus and Celestials than anything else.
Please don't try to pass off Lifebringer Galactus and the Galactus that stood against the engine as one and the same
He doesn't plan to -- he did it. He remade the universe in his image.
How this goes depends on whether we're using B13 who already has Imperiex's energies (stomp) or not (highly debatable). Also depends on whether there are any limitations on prep...
__________________
"And then there was nothing. A once broken something now void.
And on the first day, Doom spoke... 'Be.'
And then there was life."
So we are to pass the Galactus and the Celestials that stand against the engine as Skyfather level? I mean honestly, we are pitting Braniac 13 against an entity that is seemingly beating the combination of dozens of Celestials along with Galactus and two of his near equals. The thought that Brainiac beats that seems incredibly irrational. Saying that he beats Galactus alone can be argued just fine, but now we step into the ridiculous.
There has been no statement regarding Lifebringer Galactus being more powerful. This is assumed based on his performance against Order and Chaos and how there is a feeling of them being surprised. But what is happening now is picking and choosing of power based on how the choice affects the argument. So Galactus and the Celestials are declared Skyfather level for the sake of lowballing The Galactus Engine, and Lifebringer Galactus is declared more powerful in order to further this lowballing. If Brainiac is shown beating them the same way, they would be declared as powerful as ever by the same folks treating them as Skyfather level now.
So now, Sun-dipped Superman is more powerful than the combination of dozens of Celestials and three Galactus level beings? Really? Brainiac gets stomped. With Imperiex's energy, he is beaten convincingly.
Regarding the universe he reshapes, are you talking about the big bang at the beginning of time?
I believe Lifebringer is definitely more powerful than standard 616 Galactus was.
First off, he now possesses "boundless" energy: http://i.imgur.com/nUIJnAZ.jpg
*Galactus obviously NEVER possessed boundless power -- that's why he needed to constantly feed.
Secondly, Chaos and Order's reasoning for being able to "bring him to heel"(ie. forcibly make Lifebringer revert back into Galactus) is because "they were always his superiors in the cosmic hierarchy": http://i.imgur.com/eKtQyMD.jpg
We also saw the same fact illustrated here: http://i.imgur.com/84uEL2e.jpg
IOW, Order/Chaos were more powerful than Galactus -- which is why they were initially so confident when they confronted Lifebringer.
This indicates a substantial upgrade. Of course *some* will disagree for no logical reason, but the evidence is clear... So I'm not going to indulge that nonsense.