Yes the higher amperage output indicates a better P/S, there are other things to consider in the amplifier stability equation as well, but a high amp rating is usually a good sign of an amp that can sustain low impedance.

I know what you mean about Denon. I have been searching for a long time to find any lab tests, etc. for some sort of amperage output reading.

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70