Photoshop users: what version do you prefer?

[JoeM]

I haven't used CC yet but I seem to prefer CS 5.5 over CS 6. Also I remember when I first started using CS 5.5 that I had the feeling that the clone tool from CS 3 seemed to have more control and finer cloning around the edges of the selected brush. So what version do PS users prefer to use for their day to day work now?