Current uber alles.
Looking at my own meters, it’s movies that are going to push the amps.
For the record, every meter I’ve seen is really a voltage meter in disguise. A low impedance speaker won’t push the needle further up. Perhaps someone has invented a smarter meter though. :)
On a slightly different angle than the OP has asked Nelson Pass has long advocated that the performance of an amp in the first few watts is what matters most.