London Calling is considered by many to be among the best albums ever made. I've always thought their best material was on Sandinista. Its The Clash's Exile on Main Street, a band at the height of its powers that couldn't stop cranking out fabulous material fueled by unapologetic political sophistication. I remember hearing the triple album the day it came out in December 1980. It was amazing. I've never stopped listening. Unfortunately, this was the last gasp artistically for The Clash. Subsequent material was embarrassing, if popular. But I don't begrudge them selling out, they earned it. I'll always have Sandinista.