I think the raw _editing_ power of Vim is, as you say, probably unmatched in Emacs. Vim, however, cannot hold a candle to all the rest of Emacs and its elisp-y goodness. I'm a long-time Emacs user, and having recognized that Vim's modal editing and "language" are a better way of editing, opted for using Evil-mode, which gives you the best of both worlds. The transition was not without pain, but it was overall quick and worthy.