Logical contradictions in certain notions of monotheistic deities

[robvalue]

Another problem I see here is how theists attribute "perfection" to their God with such pompous confidence despite the fact that they have no real way of defining or explaining the meaning of the word "perfect" as it relates to a God.  Perfect compared to what?  Has he set his own standards for himself?  What objectives are his performance being measured against, and who is doing the grading?  

The most specific explanation I've ever heard from the theist camp is along the lines of: "well, God is just ya know...the Bestest."

Theists, what does it mean for God to be perfect?  How do you define divine perfection?

Or conversely, what it would it mean for a god to not be perfect?

If the only standard is himself, how can he fail?