Well, since you are the one listening to it, i'll leave you at that.
However, as far as i remember, the term power metal was coined after the use of fast pulsing power chords which are supposed to draw energy and inspiration in light of their 'eroic' undertones, it has nothing to do with 'the power of metal'.
Most power metal bands are fast paced, rythmically driven with an hint of fantasy romanticism in them.
Manowar it's all about kicking ass and fight for metal in a Robert Howard inspired frenzy whilst riding a chopper down the free road.
In both cases the term 'power' has very different connotations.
Of course, if you say the definition shifted throught the years, then i assume both arguments are correct...