So, why is it necessary to consider it either one or the other? I don't.
If you're using the receiver's built-in amplifiers, then I would get an analog power cord, particularly one oriented toward power amplifiers. If you're using it as a preamp/DAC only, then I *might& use a digital-optimized cord.
Actually, if I were to have such a receiver in the first place, I'd probably use a PS Audio xStream Prelude and not worry about it.