About the god (small letter intentional) of Judaism/Christianity/Ilsam:
1. I can't worship something that doesn't exist.
The "Holy" Bible is the best proof here.
a) Its descriptions of the god are mutually exclusive - he is good, but sometimes he does evil things, he is omnipotent, but sometimes completely powerless, he is omniscient, but sometimes he doesn't see, know, foresee things and events.
It is like hearing a witness testimony in a court where the witness talks about how the culprit was a big black man with a small body and white skin, dressed in a pink dress while being naked - any sane judge would reject such testimony.
b) The "omniscient" god from the bible doesn't have any more knowledge about laws of physics, biology, or even mathematics than people had at the time of writing all the texts that were compiled into the book - this clearly shows that he is a fictional character.
c) The "omniscient" god from the bible needs to test people to know who is good and who is bad and who deserves heaven... If you know the true meaning of the word omniscience, you know that a being with this trait already knows all past, all present, all future states of the whole universe, so doesn't need to do any tests or experiments.
2. I can't worship something that is inferior to me even at one thing.
a) According to the Old Testament he killed millions of his children - people. According to the New Testament - he requested his most important son (or himself) to commit suicide by allowing them to crucify him. I never killed anyone.
b) It is very easy to make him lose his temper (many many accounts of him getting enraged and killing everything), i am cool as a rock and i strive to control my emotions completely like far eastern monks do.
c) The bible talks about him making a lot of very dumb mistakes i would never do.
Example: the whole Cain vs Abel parental failure - any good parent who has at least one good book on how to raise children will know that only bad things will happen if two siblings get treated inequally and given different amounts of love. Come on... Giving Cain the cold shoulder only because he was specializing in agriculture instead of breeding goats ? And what is with prefering a bloody sacrifice vs any other sacrifice that probably required the same amount of work ? No wonder Cain turned full rebel.
Another example: The big flood idiocy... When your "perfect" creation turns out to be not so perfect (which an omniscient being would foresee even before creating it), the best way to proceed is not to kill everyone, but to fix them using your omnipotency. Even a dumber mistake is to leave alive one family with almost the same DNA as the whole population had and let them recreate the population... Was it even a success ? Before: sinners stealing, murdering each other etc etc, After: you know the history - NOTHING changed.
c) His world is hell compared to what my world would be if i only had a real omniscience and omnipotency.
Realize what happens on this planet right now: tens of thousands dying of hunger when you are reading this text, literally every minute someone (including children) gets murdered, raped, tortured and beaten, robbed, ripped to pieces in all kinds of accidents, dying of various diseases... all that easily preventable without any heavy interference into human "free choice" and without changing laws of physics very much. Can you imagine all that unneccessary pain ?