Christian argued that everything must have a creator

[Joods]

Ahh yes.. this. While it's okay for many christers to take this stance, they practically insist on shoving those beliefs down our throats so much that they actually believe the following things: 

The US Constitution was based on christian principles.  I dare a christian to actually cite any single part of the Constitution that verifies this to be true. 
That christianity has a rightful place within the US government. Wrong. We have separation of church and state for a reason.
That it is okay to discriminate against anyone who is not a christian. 
That as soon as their views are challenged, many christians scream "persecution!!"

This sort of thinking is a huge part of what is wrong with this country.

Ok, but I don't think discussing the behavior of some Christians is really the topic at hand here lol. The OP asked if the "who created the creator" argument was a convincing argument for a theist. The answer is no, because believing that God has always existed is PART OF believing in God to begin with. 

What I DO find to be a convincing arguments are more the practical things: 

If God is perfect, and everything came from God and was made by God, then shouldn't everything be absolutely perfect, too?
If all things are sacred because all things came from God, does that include viruses and bacteria?  
Why doesn't God make Himself known to us and speak to us in our everyday lives? Why the ambiguity/mystery? 
Why isn't the bible more clear cut, straight forward, and easy to understand? 

...Those are the hard questions that really get people thinking.

*bold mine*
You said: 

Your argument doesn't really matter to us God believers because part of believing in God is believing that He is a super natural being who, unlike us, has always existed.

Don't you think that a belief is a behavior? If so, then the part of your quote that I bolded, makes no sense and has no relevancy. Furthermore, you go on to ask questions that have nothing to do, as you say, with the OP's question of who created the creator.

You can't argue that my questioning someone's behaviors aren't on topic when you did the same thing. I"ll put my responses to your questions below for reference so you get it. 

1. Making the assumption that god is perfect doesn't answer the "who created the creator question".
2. This still doesn't answer the question about who created the creator. 
3, 4 and 5 have nothing to do with the "who created the creator" question. 

It would appear that you may feel that my questions aren't justified enough to be asked because they deal with behaviors of christians, which, not surprisingly, you don't want to address. But you seem to feel that YOUR questions carry more merit, when in reality, your questions don't address the OP either. 

Let that marinate.