I'd say the best wordprocessors for the Amiga are FinalWriter 97 and Wordworth 7. PageStream is good, but is DTP and not really fun to use as a wordprocessor (I only have version 3.2 though). Unfortunately all these are commercial.
I also use an Epson Stylus C62. I bought TurboPrint 7 to get the drivers. I do NOT recommend either TurboPrint 7 or the Epson Stylus C62. I had some half decent printouts, but TurboPrint is buggy and constantly crashed (with badly worded error messages). Printing a full page image in medium-low resolution took exactly 1 hour!
If you've got another computer, save yourself the hassle and don't print from the Amiga.