A decade ago, it was easily the East Coast. Cats were stuck in that try'na sound like Premo and Pete Rock shyt. I think stagnant production has hurt a lot of cats that used to be greats, especially dudes like LOX. All their joints sound stale as fukk now.
I think the "trap" shyt has really killed the quality of South music. I miss that old Dungeon Family innovation. Dudes used to really go in. Suave House and Rap-a-Lot used to have producers who were creating whole new sounds. Now everybody's stuck on that one sound, shyt's wack.