I always used a nice little editor called "Edt"... It's lightweight, does all the normal stuff, and seemed to be a proper Amiga program that used all standard requesters, key shortcuts, etc., which I remember having a hard time finding.
GoldEd was pretty good too, but I found it too slow loading ISTR. EdWord was a close second but I remember not liking something about the way you had to copy & paste text.. I'm very picky about editors I guess... makes me wonder how I can stand to use vi all the time at work :-D