I agree re: consciousness being too broad a term.
I use the term in the sense of "having an experience that isn't directly observable to others" but as you noted, people use it to mean LOTS of different other things. Thanks for articulating that thought.
I found this article on the Brain Preservation Foundation's blog that covers a lot of common theories of consciousness and shows how they kinna miss the point when it comes to determining if certain folks should or should not upload our brains if given the opportunity.
http://www.brainpreservation.org/not-all-theories-of-consciousness-are-created-equal-a-reply-to-robert-lawrence-kuhns-recent-article-in-skeptic-magazine/