That would be a great article! It wouldn't be easy (I don't think) to be remotely comprehensive in evaluating the real-world effects, but it would be great.
My one knock against Audyssey is that it can't store multiple configurations (at least on the three receivers that I've tried with it, all in or around this price bracket). For anyone with more than one distinctly different listening location, it falls short. For example, I have two spots that are kind of centered relative to my speakers, and Audyssey will handle that just fine because it tries to average things out over an area. My third spot, however, is off to the side - and a single configuration can't handle both of those situations because the speaker delays and levels are significantly different between the centered and side locations. In contrast, Pioneer's Advanced MCACC can store up to six configurations. That said, the VSX-1023 included in this comparison does not have that. It has regular MCACC that (as far as I can tell) only stores one configuration.
I've used MCACC and Audyssey MultEQ, and I think that both do a good job and are very similar for any given location. Advanced MCACC wins for me because it can store configurations for multiple locations.