What is the greatest of the CAAD road frames?

[FastforaSlowGuy]

I pined for one as a kid racer in the early 90s, and for a brief spell in the early 2010s I owned a CAAD9. It was a glorious bike, and I'm sad I let it go. For it's enthusiasm for acceleration, responsiveness, and telepathic steering (caveat: I changed out its fork), it stands on par with my C50 EP. In fact, I'd say it was the easiest bike to toss into a fast corner with confidence. I'm not riding enough these days to add another machine to my garage, but a guy can dream. My dreams are based on my N=1 sample size, however. For those who've ridden other CAADs, what has been your favorite model? I hear the CAAD10 was a big step up, but the current model (13) seems a pretty significant departure from all the simplicity and rawness of the CAAD line.