I'd get pleasure from any of the retired ones returning, whether I found them attractive or not. Marching toward the meatgrinder like in that Pink Floyd movie.
But specifically I guess I'd like to see Dominique Swift come back. Apparently the story goes that JM hired her for 'American Bukkake' and she found the experience so regrettable and unpleasant that it turned her against the industry as a whole and she walked away. In that 'American Bukkake' Ashley Blue collected many semens in a frying pan and cooked it until it curdled like eggs. Then Blue spoonfed a few chunks of it to Swift in front of videocameras, lights, and nude semendispensing onlookers.