The only things that change in the ending are the manuscript title and description (there are basically 32) and whether you take the radio, so I consider it just one ending with variations really. None of them is really the "best" or "true" or "worst."
The game came together in pieces, effects first, so I never really had a strong thematic or subtextual vision for it. So if all you take away from it is that it's a weird thing that made you feel weird, I'm A-OK with that!