I think it is fairly accurate to say that we expect out theories to be good. But, the question that the philosophy of science, and I even suppose the philosophy of religion, must address about their theories is, "What makes a theory good?"
I would say that good theories give good predictions, manipulations and explanations.
I am not a pure creationist because Creationism, while providing an explanation for how it all started, does not offer us any kind of reliable explanation for what is happening now, predictions about the future, or manipulations we can practically use in dealing with our world.
The strength of the Big Bang and Evolution theories is that while they may or may not turn out to be fully accurate explanations for what happened in the past, they are based on the goal of providing us with reasonable explanations for what is happening now in our world, giving us predictions of what is likely to happen in the future, and providing insights into how we might manipulate our environment for more optimal results.
Creationism leaves us blind to what might happen when, for example, I breed a poodle and German Shepherd, or when I inject this vaccine into my bloodstream. The only thing it tells me is that whatever happens, God is the one who is going to do it. That's great to know, particularly since I'm a Christian and take some comfort in knowing God is in control. However, it seems counter-intuitive to deny the value of available and reliable explanations, predictions and manipulations just because some have used the sciences behind them to undermine the existence and authority of God.
So, I say that for as long as it provides working explanations, reliable predictions and valuable manipulations, I'm going with it.
