Both are built from the same start files so either of them would do. I'm using the Admin one at the moment and integrating the CMS option as a blog.
I see though that <html> must be added at the head so I have:
<!DOCTYPE HTML>
<!--[if lt IE 7]> <html lang="en" class="no-js ie6 oldie"> <![endif]-->
<!--[if IE 7]> <html lang="en" class="no-js ie7 oldie"> <![endif]-->
<!--[if IE 8]> <html lang="en" class="no-js ie8 oldie"> <![endif]-->
<!--[if gt IE 8]><!-->
<html class='no-js' lang='en'>
<!--<![endif]-->
<html>