My review (September Stereophile) of the D2 includes comments about ARC. November issue will offer a head-to-head comparison of ARC and AudysseyPro. Of course, a new version of AudysseyPro, v3.0, has just been released and changes some of the balance, again.
N.B.: One does not get to choose between ARC and Audyssey without choosing platforms with many other distinguishing features, so I am not comparing the Denon with the Anthem.
Kal