The impression I get is that the question is, how many of the deities that people worship (or once worshipped) specifically identified themselves as THE one true god. But the topic title gives the impression that it's a discussion about the specific role of Jesus. Is he god, or a creation of the actual god?
I don't know how many gods claimed to be the almighty, the god of gods, the top dog, etc. I'm going to assume that, for any gods that did not make this claim explicitly, the followers will feel that it is not a relevant criteria. How do we determine the value of such a statement? What reason would we have to give that claim any particular merit? How explicit does the phrasing need to be?
And also, I think we would need to reconcile the question of Jesus's divinity as described in the Bible. His claim to be the one true god doesn't carry weight if it is determined that he is a creation of a different god. After two thousand years, that issue does not appear to be resolved. If Jesus isn't the one true god, how do we interpret the passages where he might have insinuated this? If he claimed it, how do we account for the inaccuracy of the claim?