After a long time of using fish, and before that zsh I've returned to being a full time bash user. There was no particular rhyme nor reason to my using one shell over another, so in an effort to simplify my setup across my two computers and the heaps of servers I interact with on the daily I've gone all in on bash.
wow, no particular reason? Not all the zsh features? I've been looking into new hipster shells (ion, xonsh, elvish…) but none of them can fully match the power of my zsh setup yet :D