I just want to point out that it's not necessarily an either/or proposition. I don't rule out the supernatural or the existence of gods. I am simply not convinced by the ones put forth. Or, more accurately, by the concept of god as humans have typically constructed it- the supposed perfect interventionist who doesn't seem perfect and never appears to intervene. I'm not religious, so I am not obliged to accept a set of rigid beliefs if I am not convinced that they are true, or if I am not learned enough to determine that for myself.
Thus, I am not bound by any precepts of materialism or supernaturalism. I have no need to convince anyone of my stance on the origins of the universe, as I am neither qualified nor obligated to do so. Anyone who wishes to convince me would need to explain their reasons and their reasoning. I don't have the education necessary to understand high-level astronomy or physics, so you won't see me trying to convince someone that the universe is the exclusive result of material processes. Happily, the universe goes about its business --and I go about mine-- just fine without my ever needing to understand them.
And if god wishes to get my attention, I am sure she can figure something out.