Wolf, you say that if God is all-powerful, why wouldn't He simply will it so that pleasure is experienced effortlessly. I'll answer, though I can't be certain, but most likely God has some rules that He created for Himself, or perhaps a higher intelligence told Him about them. In short, I'll say this: you can go and kill, but you don't do it because you consider it wrong. God considers it wrong to "simply want something and have the pleasure come to Him effortlessly." He considers it right to create something and watch it, possibly deriving pleasure from it, but most likely there is some meaning in our world, and no one knows what it is.
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P.S. It's no surprise that a heated debate ensued.