You are the only one I ever heard saying it was Ellen. You ought to put it in your tagline!
To be honest...it could only be 1 of three people without being obvious (which RDM wasn't going to do): 1) Ellen; 2) Dee; 3) Gaeta.
Right before Dee killed herself and they showed the pic of her in the locker...I thought it was her...since that was one of the clues on the sci-fi site. The final and most obvious clue was 22:59:44...which was when Saul revealed Ellen. So it is her....