My site contributors are primarily Safari on Mac users.  We're running into issues with CKEditor and Safari dumping a bunch of nested spans into the html created by changing content.  The html eventually gets so big and ugly that Safari can take up to 10 minutes to display it.  The drupal pages that are affected are ones that the authors are modifying, new content is fine.  The pages also seem to have a lot of tables in them.  Can anyone recommend an editor that doesn't have this behavior in Safari? 
What Drupal WYSIWYG editors work well with Safari?
drupal;safari
depending on what features you want to have this can differ. But closest to CKEditor is tinyMCE as WYSIWYG editor. there is ready to go code for drupal and it has a large community.http://tinymce.moxiecode.com/