WordPress leads Drupal and Joomla in SEO

You note in a comment that “someone could probably drive a truck through the methodology here.” I’ve nothing to add here… Except!

Your ‘test’ would benefit if you could provide some details on how the software you’re using calculates these scores. I don’t know about anyone else, but search engine click-through numbers would rate (at least) Drupal a hell of a lot higher in my book.