Answer to why do you think the Christian God is the creator of the universe?

I would say "Mr. Stranger" the reason I believe the Christian God is the creator is of the universe is this:

First of all Mr. Stranger I refuse to believe such an exquisitely beautiful planet and such a precisely tuned universe could happen by mere chance. I also refuse to believe that we were created by some vague power that just plopped us here as to say "here u go, run along and when u die too bad so sad".
So Mr. Stranger I believe that we were created by a loving and caring God. And that when he created this universe he left his signature behind for us somewhere if we only cared to look. He would have also provided us with some clues as to how and why he created earth and everything in it and on it, I also believe our creator would also tell us how and why he created mankind and I believe he would also tell us what is expected of us and how we should act. He would also "hard wire" our brains so that we look and crave for our creator. He would make us feel good when we do right and he would make us feel bad when we do wrong.
For example Mr. Stranger have you ever felt so unexplainably good and uplifted when you let's say held the door open for an older lady or stopped your busy schedule to help out a total stranger or any random act of kindness? He would design us so that if we would only listen to our heart we would live our life pretty well exactly like he'd want us to.
He would leave behind details on the history of planet earth and would tell us exactly what will happen in the future. He would give us exact instructions as to how we should live and the consequences we face if we choose to ignore them. He would make sure that his instructions are available on every corner of the earth. He would also make sure that his instructions are handed down from generation to generation as accurate as they were on the day he wrote them. He would put all his instructions into the best-selling book of all time and he would call it the Bible.

And that book Mr. Stranger is the signature of God our Creator.