Red Herring.If any believer can tell me why he/she has chosen one god over one of the thousands of others to worship i'd be interested.
You are presenting a fraudulent choice between believing a god exists and rejecting other proposed gods.
There is no such required choice. What you propose as various god-choices are only ideas or characterizations of god.
One can rightly believe god exists, and also believe that NONE of the proposed descriptions are correct.
In fact, if believing a god exist, this is probably the most rational choice. Describing or characterizing a concept of a god immediately limits it.
Hope this is helpful, but I doubt you will get it.