Which is REALLY the best Conrad Johnson Preamp

I would like to start a discussion about what you think is the best sounding CJ Preamp. Just because the manufacturer needs to change to sell more boxes and Magazines need advertising dollars doesn't always mean that the sonics have improved. For example some audiophiles like the older art series over the new GAT Preamps and it's lesser siblings. Would like the informed opinions of those lucky audiophiles who have heard both. I like the old CJ sound but haven't heard the new offerings.