If I could chose a region, it would be Eastern Europe (incl. Poland, Ukraine, Hungary, Russia, etc.). This seems to be where the more unique material comes from these days, bands like Thy Catafalque, Drudkh, Во Скорбях, Graveland, Nauthisuruz, rec, Крода, and Русич, not to mention peripheral stuff like Kraina Bez Wiatru, Kriegsfall-U., Piorun and Laibach. There is also a good amount of solid traditional groups at work like Slavland, Iuvenes, Union, Perunwit, Slavigrom, Soulrest, Butterfly Temple, Kreigsgott, Ohtar, Turulvér, Опричь and Skyforger.
Australia does well if you count Deströyer 666, even without them you have one of the most original and ambitious acts around in Spear Of Longinus (not to mention their bizarre sense of humour); less interesting but still solid are Psycroptic, Gospel Of The Horns, Portal and of course Stargazer.
Germany offers some of the better vanilla black metal in Lunar Aurora, there are also a few promising newcomers like Helritt.
Come to think of it I should probably have picked UK over Germany for the recent releases from The Meads Of Asphodel and Orange Goblin alone. Oh well.