I listen predominately to metal.
(Not american metal. I don't like most of it that I've heard.)
Specifically, folk, power, black, viking and symphonic metal.
Folk/Viking metal: Melodies. They are glorious. Also, folk instruments go really with with electric guitar,somehow.
Example bands: Korpikaani, Eluveite, older Elvenking, Ensiferum, Tyr
Power metal: The songs are fast, catchy, and upbeat. They fill me with energy.
Example bands: Dragonforce, Blind Guardian, Van Canto
Black Metal: Black metal creates an atmosphere and feeling, unable to be replicated by other genres, and even other art forms.
I have to be in a particular mood to listen to it though.
Example bands: Enslaved, Evilfeast
Symphonic Metal: I love the melodies, and the epicness of hearing choirs and orchestras in my metal.
Example bands: Rhapsody of Fire, Therion, Epica
And Wintersun. They're a bit of a lot of things.
They're just orgasmic. Just listen to it.
Power-folk- melodic death-symphonic orgy of eargasms.