Bluesky, as a user feels like Twitter used to be.
Threads is the most enjoyable, I feel.
Mastodon, I don't get. I've been on it awhile but it's becoming used less and less by me because I don't see content I'm interested in our want to engage with and I don't know how to change it.
Essentially, everyone is on bsky now. News organizations FINALLY decided to leave Twitter and are spinning up their bsky accounts.