The stories I've been trying to work on, including my contest entry,
The Ghost People, tend to follow how your actions affect something that is already going to happen. For example, in The Ghost People, one of the characters goes mad and ends up killing another character. That happens no matter what. But who that other character is depends on what you do.
Another example of this kind of choice, call it a "passive" choice, is this: say in the story you are running from people, and say you hide in a bathroom. If you weren't involved in the story, the person who follows you in the bathroom is going to be interrupted by a radio call from a colleague. That radio call will happen no matter what, because it is entirely outside the hands of the player (you). But, if you (choice 1) decide to hide in the ceiling in the bathroom, just before the radio call comes, you will fall through to the ground. When the call comes, he will then say that he's found you, and you'll be arrested. If, on the other hand, (choice 2) you decide to hide in a bathroom stall, then before he gets to your stall he will get the radio call, and then he will leave, with you being undiscovered.
These "passive" choices are most of all I've put in the story I published and the other couple I've been working on. However, there is another way of doing it that I've seen here. This other type of choice, the "active" choice, I'll call it, completely changes the direction of the story. There is no set events that you impact by your choice. Instead, your choices simply cause an entirely different direction of events to unfold.
For example, say you are in a magic school, and if you choose to study Nature magic, you will be transferred to a school in the Elvin forests. From there, you will have to help those people deal with a false claimant to the throne, go into a cavern and recover an artifact from a clan of vampires. If, on the other hand, you choose to study weather magic, you will be shipped off to a human city, where you will work with the king to help a siege defense, and help defeat an invading army. Finally, if you choose to study Necromancy, you will journey to a far away coven in the deep, dark, swamps to the south. You will ensnare local villagers for human sacrifices in evil ritualistic magic, and after rising through the ranks, will unleash a plan to destroy all life. (btw maybe I'll make a story based on this, haha)
As you can see in this other kind of choice, what happens in the world is not even remotely determined (in the sense that you're just reacting to events that would happen regardless of what choice you make, with your choice only having a minor result on what occurs). These "active" choices basically spawn entirely different stories for you to follow, while the "passive" choices just make you weave and twist through one single main story.
While writing this it occurred to me that having both types would be great, but as I said I've so far only experimented with the first, with one tiny exception in The Ghost People (but even that just gives two different pathways to the same goal- whether you immediately climb down the mountain or stay up high to avoid the Terror Birds).
So which type do you prefer and why? What kind of insight or advice to you have on crafting choices and merging them into a solid story?