Christians, what is your VERY BEST arguments for the existence of God?

[Tiberius]

I was giving Plantiga's argument as an an example of an ontological argument you didn't parody. There are many more. Parodies are only successful when they look at specific arguments and use the same logic. There is no "general" ontological argument. Plus your parody fails because it uses the concept of a "non-existent creator" which makes no logical sense.

How does a non-existent creator make no logical sense? Why isn't the most formidable handicap for a creator, non-existence?

So we could replace "maximally excellent being" with anything we liked (that possibly existed) and the argument would still be valid? I presume that isn't what you meant.

Anything that is "perfect" by definition can be substituted and the argument holds.