I never liked Slipknot until Psychosocial. Their music changed drasatically. Still don't really like corey's clean vocals, but I enjoyed their previous album.
Solway Firth was good! But tracks like "nero forte", "critical darling", and "orphan" had choruses that left me underwhelmed. They've done better in the past (like with psychosocial, duality, or even devil in i)