I'd wish images could be pasted directly into the ck-editor. Also a Heading (Hx) Tag option would be nice....

I'd wish images could be pasted directly into the ck-editor.

Coming from where?
From other websites, that should already work. 
From something like the computer’s clipboard, that isn’t a really a function that has widespread browser support at this time. 

Also a Heading (Hx) Tag option would be nice....

​You can set it up yourself (Custom Button) or install a CKEditor plugin. 

You're right: custom buttons is a good idea, thanx.

Actually I just tested it with my wordpress-installation and it doesn't work.

I'm just used to it at my companys wiki "Atlassian confluence" it works pretty well to paste an image into the editor from the computer clipboard working with different chrome, explorer and firefox versions.

Just a thought....