PROS: Supports all main browsers, includes spellchecker and 508 compatibility (select version), Great image upload/insert options. Compatible Joomla 1.0x/1.5x, Mambo 4.5/4.6.

CONS: There was an issue with the lack of rel="nofollow" but this has been resolved by the XHTMLsuite team.

XHTMLsuite 508 WYSIWYG Editor 

There are many different WYSIWYG editors for the Joomla platform, and they all vary in quality and abilities.

XHTMLsuites offer two version of their v1.8 WYSIWYG editor, their standard version and their 508 enhanced version which ensures your articles complies with Section 508, so people with disabilities can have full access to your content. This review is for both version, unless otherwised specified.

XHTMLsuite is totally configurable, allowing you to set up user and group specific profiles which can change the look, feel and ability completely based on your needs and security considerations.

You can allow all registered users to be able to use the editor, but not allow them to upload images, while an author would be able to both create directories and upload images but would not be able to delete any images where as an Editor could have the ability to do all of the above and then some such as access to the css plugin (add/edit css styles).

You can have different themes (looks) and even change the size of the editor width and height between the different profiles.

The admin backend also allow you to import spellchecker data and add words into the dictionary, as well as edit the language file to translate all prompts and text in XHTMLsuite to your own language (currently only English and German is offered standard).  Most people will not bother, but it is nice that the ability is there and rather easy to update.