this is progressive power metal. you can try it if you want.
i like it because… is a very powerful song, making me want to jump up, throw my hair around, with a lord of the rings like story based video which just fits perfect to the music.
another symphony x song i really like is through the looking glass. i really love the part ii, starting at 5:19 in the link’s video. (part iii apparently was cut off from this video…)