Thanks to this post, i found a few other alternatives.
So i share my finding here: i can recommend the “X Standard” WYSIWYG-Editor which is one generating the most valid (versus XHTML 1.1 – the most strict standard) results. it is very flexible and can easily be configured to ones needs.
It is available in a free Lite-Version (that has pretty powerful, too – including good table support). The Pro-Version with Filemanager and Inline-Uploader, etc. etc. etc. is about 180$ for a 10-User License, which i think is quite fair. (theres a 30-day-trial that is really really powerful)
but: it needs to install itself on the first usage (compareable to the flash-plugin needed to view flash-animations in firefox).
In your case this would probably be a downside – in my opinion this is a plus, as this allows it to run much faster then the js-inline-popup things.
i posted a few screenshots at https://contactsheet.de/weg-mit-tinymce-aber-zack-zack.xhtml
A Online-Demo is at https://xstandard.com/demo.asp
I did’t yet put it together as a wordpress-plugin but that is my idea for the next week. For now i integrated it “by hand”. regards
BTW: Others still looking for a suitable Editor should take a look at this page, which gives a great overview over most WYSIWYG Editors out there:
https://www.geniisoft.com/showcase.nsf/WebEditors
