codeispoetry - WHAT... 'Advanced toolbar', no I didnt know about it and I think alot of other people missed that one - WOW!! Do you know how to get it to show this by default - this would sort 90% of people! No tables, but you shouldnt really be using them anymore anyway!
I have used all sorts of editor plugins, Editor Monkey (sandly long neglected, was excelent in the past), Advanced WYSIWYG Editor amongst others. I have also hacked it up a bit in the past, but it's real hastle when it comes to upgrading the core WP files and sorting the hacks again.
Some way of managing TinyMCE plugins would be great, or at least be able to re-arange the icons - I had a plugin that did that once, not usre which one, I think it was Editor Monkey.
WP rocks in lots of ways, but I think everyone would agree that the actual content editor leaves a-lot to be desired - especially for non-techie end users!