I grew up in my student years with vi on Unix, and I never really warmed up to Emacs ;-) So just use the tool you're experienced and comfortable with.

So I'm building Mainly Norfolk pages with lovely hand-crafted HTML code in vim including syntax highlighing and spellchecking. But I usually put the actual content into a template that uses Apache server side includes to add the page frame and build the top navigation (Roud, Child, Ballad Index...) when the page is delivered to the caller, so that look and links are consistent over all pages. This isn't fancy enough to call it a CMS but it does what I need.