Artof Editor is a WYSIWYG plugin for Joomla based on the very popular CKEditor. It is up to date with version 3.6 of CKEditor.
This plugin gives you the ability to select a different editing toolbar for frontend and backend users and several other features. This is a simple editor but my personal favourite to use with Joomla, particularly if you are writing technical articles with code snippets, and does not suffer from some of the feature bloat compared to other editors (like JCE). It's simple, it works and it's free.
I'll certainly donate to one of their recommended charities.
I'm using it in Joomla 1.6 and it works a treat.
My main reason to use it was a request for .doc import by client. This does it out of the box without any fancy options or additional questions.
I also love the templates available within the editor! It gives you instant creativity.
It's really nice to install a plugin that you want to keep.
Thanks Andrew Eddie.