my favorite era is the harder rock/heavy metal era of 1979 to 1982 (Lovedrive, Animal Mag, and Blackout). I like everything they did in the 80's but they kinda got too commercial near the end. Still, I like everything they've ever put out. The 70's stuff ruled (although their first album is a bit directionless, they soon got it together and started making classic 70's rock). I saw them in concert 3 times: 1984, 1985, and 1988.