Decide the task you need "the engine to create simple sites" or WYSIWYG editor (visual editor content).
In the first case, TinyMCE does not help.
Second, why not. I would not rashly to call it the only or best solution. But with the right settings it is one of the best that's for sure.
Rozella.Spinka answered on October 8th 19 at 01:55
Alternatively, take another look at CKEditor and Imperavi.
roberta_Emard answered on October 8th 19 at 01:57
Depends on what content.
Of heavy instead of TinyMCE would suggest elrte.org (there's also a file Manager).
Easy — see our reviews here on habré.
muriel.Jacobs answered on October 8th 19 at 01:59
Very easily screwed, including in the form of a plugin for jQuery. Supports compression in a ZIP file — loaded almost immediately.
In General, I recommend. I think its the best.