For me it's a very easy choice to go with Bluesky over Threads.

With Threads you can already see that Facebook/Instagram is in it's DNA. There's no pure "following" feed. It's instead an algorithmic feed that mixes people you follow with people Threads decides to push. So it's going down the enshittification path from day one.

With Bluesky there's at least some hope that it will not end up as the algorithmic time sinks all other social media has slowly become. I'm all for discoverability, but allow me to decide when and how I discover new people to follow. Never touch my "following" feed, and I'll be happy.