thrashmetal Just to be clear: The big 4, are the big 4 for a reason, not due to them being the “best” bands in thrash. (Coming from someone who’s favourites are Testament & Exodus) It comes down to 3 things: - commercial performance - influence (all had debuts prior to 86) - & solid initial runs (Kill, Ride, Master, Justice, Business, Sells, Rust, Hell, Reign, South, Seasons, Spreading, Among, Persistence)