What would be the stronger test for creation?

By "creation" I presume you mean creationism, the belief in a divine intelligence.

Teeming with life would be a stronger indication of creationism. Why? Because one would presume the divine intelligence would want to create life as much and as often as it could. If anything, just to show that it could.

On the flip side, the rarity of life would lend support to the idea that life happens only when a very rare blend of circumstances happen at random. There are literally thousands of factors that enter into creating life; for them all to be just right at any given instance would be a rare event indeed.

Good question.

A person can know many truths about God, creation and evolution by way of true devotion to St. Philomena, an early Christian virgin and martyr.

Well, Christian and Muslim folk say both. Whether or not life is abundant or rare the cause is god. Proved true in each and every case, all data points. It’s a classical tautology. Therefore not useful in proving their case.

you hear contradictory statements because ALL statements deny God' Freedom and Purpose in what He created.

"Creation", which means that ALL life that ever lived, lived at the same time, is so utterly absurd that it isn't worthy of 2 seconds of consideration.

Rather, when does life enter into the womb and where did it come from if not the Source of all life?

Non-life cannot become (even instantly reproducing!) life. When the life leaves the body, it doesn't disappear... like all things it just changes form.

Nothing ever really disappears.... it just turns into something else. The water coming out of your taps has been here since the beginning. A seed must die to become a tree....

The Life Force that created the galaxies is the Source of all life everywhere. Life itself is proof of its Creator.

The stars - each one of those beautiful little lights - are evangelists speaking of the wisdom and glory of The Creator.

If god created the universe, why did he make it so big and put just the chosen ones on just Earth.

Neither one is a test for creation.

Quantity of life is only evidence of the conditions that support life, not the source of life.