[Suzerain of Sheol]

Well, when Tolkien wrote that, he was channeling Shakespeare, in Macbeth, where Birnam Wood comes to Dunsinane, only he wanted a real forest to be attacking. :p

Anyway, for me, the War of Wrath in the Silm. is pretty incomparable. The whole image of the entire host of the Ainur coming sweeping out of the West to depose Morgoth once and for all, only to be halted by Ancalagon the Black and his horde of dragons is kind of stunning. Admittedly, Earendil somehow killing this city-sized dragon with a sword is a bit unbelievable, but the image of his fall smashing Thangorodrim to rubble is one of my favorite scenes out of Tolkien. And then Morgoth gets his feet cut off. What's not to love? :p