cool.
your argument is that The Q are more powerful because their world has alternate realities and MorganGod's world doesn't. The only reason a multiverse doesn't exist in "Bruce Almighty" is because those "possibilities" did not occur... or at least, we did not see them, and thus, we can't say they exist.
A multiverse cannot exist if a universe did not exist first, MorganGod created THE universe... given that, how is it at all logical to say that he would not be able to control the multiverse (if one existed in "Bruce Almighty"😉 when he created the thing (the universe) that the other things (the alternate realities) branched off from?
How it more impressive to have multiversal power than creating the actual universe that a multiverse would come from?
This brings me back to my initial point that MorganGod created the universe and the Q did not.
now, Epicurus says they are indeed capable of creating an entire universe, but i have not been able to find the proof. If you can substantiate his claim, we can end this debate and call it a stalemate.