Nazxul is pretty good. "Iconoclast" was one of the better black metal albums of the last 5 years. At least a B/B+.
Ignivomous isn't really worth the effort. Superior work by Cruciamentum, Decrepitaph or Dead Congregation already exists.
Let me second D666, Bestial Warlust, SadEx, Vomitor, Spear of Longinus, and Midnight Odyssey. Each has work which is B-grade or higher.