Why Christianity?

[orangebox21]

Does the deity posses the characteristics necessary to be the creator?

It's inconceivable that a being with the power and knowledge to create a universe could possibly be held accountable for the bullshit in The Bible. Genesis doesn't even accurately describe the sequence of events and it's all downhill from there. I never understand why Christians are so hell bent on proving a creator deity. Even if I grant this type of being, which I don't, there is no way in hell you can get from there to the split personality character in your special book.

It's much more honest to say you believe it because you want to instead of going through the machinations required to attempt to make any sense of any of it. It simply can't be done.

That doesn't address the question.  The question addresses the fact that the creator of the universe would necessarily transcend the universe.  In other words the creator of the universe transcends time, space, and matter.  What deities make this claim?

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And that leads to disjunctive syllogism.  Either truth claim A or truth claim B is true.  As an example, one of the truth claims shared by all religions is that man is in a fallen or imperfect state and is in need of salvation/redemption/perfection [a claim atheist's would recognize as well].  To the best of my knowledge, all religions other than Christianity make the claim that salvation/redemption/perfection of man is found in man's own efforts.  In other words, all other religions teach that man is his own redeemer.  Christianity makes a different and mutually exclusive claim.  Namely that you have the forgiveness of sins [salvation/redemption/perfection] through the effort of [God] Jesus Christ.  It is by grace you have been saved, not of works.  So on this specific issue, either Christianity is true or all other religions are true.

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Or they could all be false.

Interesting that you did not include that choice in your dichotomy.

Given that the OP wrote:

if I accept your notion that the universe must have had a creator, why couldn't it have been...

we are arguing form the premise that the universe has a creator.  The OP then asks why the Christian God rather than any of the others.  The framing of the question doesn't allow for "none of them" as an option.

But for the sake of argument let's say the OP reworded the question to allow for your option.  To include "all are false" in my dichotomy would be illogical.  To claim that all could be false would be to claim that none of the known deities are the creator.  That necessitates an unknown deity being the creator. Therefore you're asking me to make an argument not from a position of knowledge, but rather from a position of no knowledge.  Claiming to have knowledge from no knowledge is illogical.