Good little article, and I agree with your conclusion. TinyMCE's lack of full Webkit support is a risk currently. I have tried FCK within a corporate environment for several months now with some success. People especially like the way you can open the editor in its own window, I think because this partly mimic's Microsoft Office functionality that they are used to. It also has useful paragraph, heading and Div outlining, which makes formatting for non-technical users much easier.