emacs

Why not just use emacs everywhere? I suppose if you use spacemacs (which has vim keybindings) then you might want to 'set -o vi' on the command line.

Emacs has Org-mode & Magit, each of which should be reason enough to switch. Then there're notmuch, gnus, slack-mode, eww …

Seriously, emacs really is a more powerful environment[0]. Modern vim tries to be as flexible as emacs, but the language isn't as nice.

E.g. Damian Conway's[1] simple example:

    function! ToggleSyntax()
       if exists("g:syntax_on")
          syntax off
       else
          syntax enable
       endif
    endfunction
    
    nmap <silent>  ;s  :call ToggleSyntax()<CR>

would be:

    (defun toggle-syntax ()
      (syntax (not syntax))
    
    (global-set-key (kbd "M-C-s") toggle-syntax)

in a hypothetical elisp for a vim-like editor[2]. In his article he refers to vimscript a more humane than elisp, but I think this simple example shows he's wrong.

His next example is a command to capitalise a line, centre it, then move down:

    function! CapitalizeCenterAndMoveDown()
       s/\<./\u&/g   "Built-in substitution capitalizes each word
       center        "Built-in center command centers entire line
       +1            "Built-in relative motion (+1 line down)
    endfunction
    
    nmap <silent>  \C  :call CapitalizeCenterAndMoveDown()<CR>

I think this is a lot clearer:

    (defun capitalize-centre-and-move-down ()
      (interactive)
      (upcase-region (line-beginning-position) (line-end-position))
      (center-region (line-beginning-position) (line-end-position))
      (forward-line))

[0] https://sites.google.com/site/steveyegge2/effective-emacs

[1] https://www.ibm.com/developerworks/library/l-vim-script-1/in...

[2] For the real emacs, it's just font-lock-mode.