I'm not sure that you should be listing GNU Emacs and Xemacs together. It's true that most keystokes you use in Emacs will work just fine in Xemacs, but the reason that I use Xemacs is that I don't need to remember all of that. Most of the functionality that I use in Xemacs is just a menu or a mouse click away. It's like Notepad on steroids :)

"The first rule of Perl club is you do not talk about Perl club."
-- Chip Salzenberg