I think Octavarium is pretty badass. Indeed some of the riffs are simplistic, the downtuning is pretty apparent, and probably used just to make the simple riffs sound cool. So? The key there is it sounds cool. Maybe they got to rehearsal and someone started this simple riff, and everyone could vibe to it automatically. It happens all the time to me. Sometimes the simplest stuff is the most memorable. I personally love all Dream Theater, though there are songs I like less, such as You Not Me, Afterlife, and Space Dye Vest, so call me a fanboy if you wish, I admit it. Although I am endlessly confused at why DT is mentioned so often on another band's official forum.
