There is minor differences that each has. The best feature that I look for is swipe to upvote, compact view, thumbnails on left, clean inbox and messaging. Unfortunately due to the lag, anytime I post or want to save a post I go into the browser as none of the apps successfully post.
I blocked all the Reddit communities and instances. Lemmy needs to be it's own thing which require community involvement, not reposting shit posts from Reddit.
Voat failed quickly because of the "no censorship" implemented which allowed garbage to congregate. Of course people left because it was nothing but shit.
I love how World and Blahaj are lgbt friendly and anti authoritarianism, unlike .ml.