Writing

It seems that, about half of the time, I'll start writing a story in one narrative form and then part-way through decide it would actually be better told in another perspective (usually switching from first person to third person limited or vice-versa).

I'm wondering how everyone else chooses a narrative perspective in your fiction writing. Do you have a go-to favorite? Do you arbitrarily choose one and stick with it? Or are you like me and play around with point of view until it seems to "fit" the story?