Personally, if there is a creator, a geek who accidentally pressed 'run universe' or 'activate super collider' is equally plausible as it having been a deity. You don't have to be all-powerful to create a universe, just have the right tech. If that were the case there would have to be an original universe (at some point) that either formed naturally or was created by something more creator deity-like than ancient aliens, if the latter, the question of where that deity-like being came from remains.
I'm not anti-Christian. I'm anti-stupid.