All of them!
All those methods, and others, can work really well in all sorts of places. It's a very subjective thing, and the best advice I have is "ask your teams to work together to decide which one is best for each team"
In my experience, I tend to use several methods, not just one.
So, I apologise for the essay, but this is something that crops up a lot. I want you to know that you're not alone - people are struggling with this all the time.
But, the TLDR version: You need to do what works best for your teams!
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