Conditional decision theory versus Causal decision theory

I've been trying to understand Creation by building models for it. These models center around the process of divine deliberation (maybe not in the usual sense of 'process'). How does God deliberate on which world to create? The guiding idea is that there is a number of possible creative acts God can take each of which will lead to the actualization of one particular world. The deliberation ends when God decides to choose a particular creative act which will lead to the actualization of one certain world. After this decision being made, God starts performing the chosen creative act and "Boom!" Creation begins.

But how exactly should we understand the relation between creative acts and the worlds they are connected with. In the above passage, I used the phrase 'lead to'. It is ambiguous. Most obviously, there is a causal relation between divine creative acts and the worlds they are connected with. But there are also conditional relations between creative acts and the actualization of the worlds they are connected with. I say 'conditional relations' because there are different kinds of conditionals. When God deliberates over the decision about which world to actualize, He may balance the alternative creative acts in terms of their causal relations to the actualization of worlds, or in terms of their conditional relations to the actualization of worlds. And these two ways of balancing creative acts may lead to different results, even when we assume that God holds the same preference scale about all the worlds. So an important issue here is which decision theory should we take God to be using (a bit of over-theorizing, isn't it?)--the conditional decision theory or the causal decision theory?

I start with the conditional decision theory. So given this picture, God balances and compares the possible creative acts in terms of the benefits from the actualization of worlds that are conditional over their performance. But what kind of conditional relation is involved here? Strict? Material? Indicative? Or subjunctive? These are the major conditionals I have in mind. And these are the ones I will explore for the potential of being used in modeling deliberation.

After exploring the conditional decision theory, I will start looking at its alternative--the causal decision theory.