I took a close look over all of the possibles mentioned on this thread. My money is on Wanda Priddy.
http://www.charleyproject.org/cases/p/priddy_wanda.html
Side by Side - WARNING: Postmortem photo at link:
I would have thought they could have confirmed or ruled her out already, but maybe they are having trouble getting identifiers on Wanda. The comparisons are a little difficult because of the awkward angle from which RCJD's photo was taken. But nevertheless, I see the following similarities:
(1) The Charley profile indicates that Wanda's "upper teeth turn inwards toward each other." Below is a photo of RCJD's teeth, which I found on a different thread. I'm not sure where the poster got the photo from, but it does appear to be RCJD's teeth. The description of Wanda's teeth appears to be consistent to RCJD's teeth.
(2) Their noses are prominent, narrow at the nostrils (alae), and bulbous. All other structural elements of their faces appear to be consistent to each other (although precise comparison is difficult due to the difference in camera angles).
(3) Their eyebrows (both right and left) have very similar size and shapes (See Graphic Below)
(4) Wanda's Charley page indicates that she has
scars on her chin, above one of her eyes and on the top of her head. The scar on her chin appears to be a vertical scar to the right of center. RCJD appears to have a similar scar. I am unable to see the other scars described in Wanda's Charley page.
(5) Both appear to have what appears to be a burn scar on their left cheek (See Below). RCJD also has significant bruising in the same area, but this bruising appears to be different from the discoloration.
(6) Wanda was last seen wearing brown shoes. RCJD was wearing brown "quarter earth shoes".
(7) There is a 2" difference in their heights, but that is not outside reasonable tolerances.