90% of the metal that I listen to is modern. I only like a very small fraction of traditional heavy metal and an even smaller fraction of thrash (too repetitive).
Portal is like a shape-shifting beast that's been dismembered and reassembled and it's also infected with eels.
While old school black metal has grown into a cliche at this point, it's still being pushed forward in new ways.
Modern death metal and old school death metal are as different as two very different things