For most communication, full stop. I edited a news-stand magazine with TextEdit on the Mac for several years (Apple's bundled text editor, speaks RTF). I found

For most communication, full stop. I edited a news-stand magazine with TextEdit on the Mac for several years (Apple's bundled text editor, speaks RTF). I found that the complexities of Word just got in the way, and the InDesign guys liked receiving consistently, minimally marked-up text.