Christianity; the World's Most Violently Persecuted Religion

[TheWhiteMarten]

Presumably to continue and allow his creation to have free will, perhaps the third best gift ever given to man.

In this context, what is the value of being able to choose? What good is it to have been capable of sin? Wouldn't we be better off with just the one choice?

That's a question I cant really answer for you, to be honest.

That choice is what makes us different from any other creature on the planet; that feature the one that has lead to our dominion over the world and at times over primal forces of nature itself. 

What value God gets out of that, I can't answer with any authority - but I find plenty of value out of that, esp. when when use that power in a just way or in a way that brings new beauty into the world.