If you love rockin' guitars, ambiguous sexuality, and high pitched screEEEEEEEEEEEEEEEAMS then let's hear a word from you.
My favourites in the genre are Gamma Ray and Helloween.
Honourable mention:
Judas Priest
Manowar
Avantasia
Motley Crue
Also, if anybody knows 1st wave power metal bands (second wave being like Blind Guardian and whatnot with first generation being post Judas Priest/Iron Maiden screaming stuff. First wave because Priest and Maiden have a lot in common with old school heavy metal too.