> WordPerfect beat them all.

It was certainly popular, but I hated all the function keys (I still hate function keys) and my favourite was WordStar (not for Windows), for both word processing and as a programming editor, up until I switched to Word and Windows vi clones.

I remember the CP/M version of WordStar gave you a patching tool that allowed you to insert screen and keyboard handlers in machine code, for your specific hardware (to speed things up), into the WS code. I can still remember how clever I thought I was when I got this to work!