All of the more fediverse-focused ones (fedditors, fedinauts, feddies, fedizens, etc) are definitely better. Lemmy is bigger than just Lemmy: we have users from Mastodon, Kbin and more seeing and replying to our posts. Let's choose a name that reflects that :)
Also, just to prove a point, if you're here from anywhere not Lemmy, say hello!
Hello from mstdn.social!