I have not heard the anthem, only the Rotel.
but you have to consider that there are a lot of opinions with regards to amps:
1) those who think ALL amps (when designed/built properly) sound the same
2) those who think that amps have different sound quality from each other
3) those who prefer to let specs and aesthetics decide (since I can't demo the items)
I belong in the third camp:
PVA=aesthetics winner for me (but my brother thinks it looks like a refrigerator), auto signal sense ON
Rotel=bigger wpc (conservative), higher damping factor, 1070 can be bridged, and last but not the least ... it rocked for me, "why change a good thing".
the anthem dealer actually told me that the Rotels are actually low end in comparison to anthem. the problem is, it is the anthems that are cheaper than the Rotels.