What would support the concept of creation better?

Size seems like a less important factor versus those like complexity, design, order, and others.

The center of gravity of the earth is not a natural one but created one. You need not think about universe and all when the evidence for the existence of God is still inside all. You are living in a miraculous era of God. This is a temporary miracle.

The size of the creation is not important if the god can do anything. But a god before the creation would be a god of nothing and non social being. It also would have no substance as how could it be of energy or matter if nothing existed? A god before the creation makes no sense if you try to rationalize it. Everything is relative and a god is no exception.

It is our myth that universe initially was a tiny thing and there are no supporting points or evidences for it in both science and spirituality.

WEll, a Creator that can create just by will could do either so the 'reason is outside the size.

They are the same, the only difference is relative.

Not that the size of the universe would suggest creation or not, but one could point out that most of the universe and our planet is hostile and a colossal waste. Think about it, there are hundreds of billions of galaxies, each with billions to hundreds of billions of stars and and we're on a single planet that is mostly uninhabitable orbiting an unremarkable star in an average galaxy.

What might suggest creation is if the universe, our planet and solar system were formed in a way that physics could not provide any explanation for it, like each class of star in sections. arranged in a 3d matrix and spaced so that their gravity would not affect the arrangement.

So far, there has been nothing presented that could be considered valid support for such a concept. The evidence clearly indicated that creation is in fact a creation of insecure humans.

You want to support the idea of creation, prove that it is a real thing. showing a universe of any size does not do that.

Depends how scripture is written