I had been using all three, then I stopped using X. The algorithm was suffocating me with junk that seemed relevant. Nostr shined because it didn't have an algorithm monitoring me and recommending things that it thinks I want to see from people who know how it works to get engagement. The problem with Nostr for me is the accounts, it seems like a back alley of strange people and fake accounts, but the real interactions I had there were more useful than any on X. In my opinion, journalist and news accounts can be more attractive to me and to many people. And that's where SN shines and becomes my main source of good content, filtered by a simple coin system, there won't be spam (not much) and irrelevant content isn't rewarded.