For myself, you can keep wondering. What music do I like? Heavy metal, the odd folk group, and some classic.
My favorite band is Judas Priest, flanked by Saxon and newly discovered Falconer (courtesy Pandora; thanks guys and gals!). Other groups I recommend: Black Sabbath, Rainbow, Deep Purple, Hammerfall, Jethro Tull, Iommi, and Thin Lizzy. Dragonforce is fast, but tiresome. If you want practically as hard stuff to try and play, check out Thin Lizzy. I pulled a muscle in my back trying to mess with one of their solos on the Emerald. Yes, I am a guitarist in the works. My favorite guitarists are Ritchie Blackmore and Tony Iommi. Vocalists are Rob Halford, Ronnie James Dio, and Matthias Blad.
N.I.B. , Black Sabbath
Stargaxer , Rainbow
Tyrant , Judas Priest
The Assailant , Falconer
Children of the Grave, Black Sabbath
Knocking at Your Back Door , Deep Purple
Heresy in Disguise , Falconer
Howlin with the Pack , Hammerfall
Lionheart , Saxon
Electric Eye , Judas Priest