Good call. I love the emotional thrust of their music; the beauty of its power. I've never been into brutality for brutality's sake, although I can see its appeal. For me, having that grandiose element of... I don't know... romanticism or something mixed in with the classical era themes (historically speaking) just creates something otherworldly and fantastic. A wonder and awe that must be akin to that felt by the contemporaneous beholders of the Hellenic world's most glorious artistic and architectural achievements.
You could also have posted 'A Great Mass of Death', which is my favourite from any of their releases, as well as 'Lovecraft's Death' which just... I mean... Lovecraft!! I get chills listening to these songs. A visceral as well as emotional response.