I use aquamacs at home on my Macintosh, and GNU emacs on Windows XP at work. I have switched back and forth between emacs and vi/vim over the last 25 years because they are both great editors and have various advantages and disadvantages. I had been using vim back when I was using Ubuntu at home because the fonts looked better on vim than on emacs. Now that I have a Macintosh and can run aquamacs, I switched back to the emacs world. I admit I'm a sucker for pretty text.