I guess the Real Thing is the BIG seller, though Angel Dust is more of a fan fave for its mix of discordant brutality and FNM's pop nous. The albums that followed are good too, underrated really.
The new one, "Sol Invictus" has just got a 9/10 glowing review in Metal Hamster, for what it's worth saying it's as good as anything that came before the split. Guess we'll see!