IMO, the choice of nix editor is always somewhat contextual depending on how much full stack work is being done. If one is doing a lot of systems work (ie a lot of bash commands), then one inevitably wants to set a default editor on the systems being used. While I choose vi, it really depends on the number and type of systems being regularly accessed, and your personal preferences. For me the use of a terminal editor is just part of the seamless flow of using the command line for everything else. I personally don't think it is especially valuable to consider terminal editors in isolation away from bash, other than to become familiar with key strokes.