But isn't writing a text editor one of those garden path problems - a near never ending amount of work to get to just what exists already? I guess I also wonder what inspires developers to start new text editor projects too! Perhaps its just dis-satisfaction with what is there already.
Any debate about them being better really misses the point, it's the dvorak querty argument all over. Better doesn't matter as much as familiar to new users. Textmate is immediately useful to a new user and feels like a modern editor. Emacs and vi look and feel archaic and require too much effort to feel productive in.
That's my two cents anyway after many attempts to use both. Can't stand vi, can get by with emacs just don't really dig it. For quick editing in a shell I just use nano because it's usually just editing of config files.
Comparing how emacs and vi/vim are different from other editors and like saying no one will ever use lisp because of all the parentheses.