From the voting post:
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The Abrupt path: this path is the shortest (1 update worth), and doesn’t have an alternative.
The Good path: this one will also only be around 1 update worth of content, but has a bit more meat to it. It also has an alternative ending (though that alternative is only a few thousand words long)
The Hero Path: This path is by far the longest (except for Aya, which isn’t a choice). It’s around 4 (maybe 5) updates worth of content. There’s also one long alternative ending.