I used to be such a textedit user. I changed its preferences so it so it would always deal with plain text (so it could go to any device or website). But then I got sick of having to save it all the time. Even though I could use TextExpander to put in the date, I didn’t like having to constantly put the files away someplace.
Stickies don’t allow me to scroll as there are no sidebars. I have to use my arrow keys all the time. Also, as far as I know it can’t auto show a date (the information is somewhere though because I can hover over the windows and they’ll list creation date etc.
Textclips can’t be seen with quicklook, but I used to use them to drag the text out of a textedit document to avoid the trouble of saving it.
I’ve really come to like stickies though. I do wish they would sync with mobileme though.