Paul Graham about using Vi: http://www.paulgraham.com/pfaq.html<p>Important notes: (i) I am a big fan of Paul Graham essays/work, (ii) I am still a beginner/intermediate level learning programming, (iii) I have been using Sublime as a text editor so far but I am planning to learn Vim or Emacs asap, (iv) last year I learned a little bit of Racket/Lisp while doing the SICP and I really enjoyed the language.
There are aspects of a text editor that might outweigh the implementation language somewhat.<p>In particular, vi's model of user interaction is compelling. In normal mode, command keys take on the role of nouns and verbs in (rather terse) language for describing edits. In principle, this makes editing very fast while requiring you to learn only a short list of commands; there can be a very large number of combinations that arise from even a very small set of well-chosen commands.