Seems like the best one right now, but the dust hasn't settled.
I can tell you I will NOT join another closed platform. I will join a different open, federated platform if it looks good. I never want to contribute to another corporate or bound-to-eventually-be-corporate social ecosystem.
Lemmy still needs a lot of work, particularly the apps. I'm switching between Jerboa, Wefwef, and Connect, each of which has some pretty big problems, particularly with media and link integrations. The third-party Reddit apps were very mature and well-designed. I'm sure we'll get there with Lemmy in time, but we're not there yet.