Combat Rock utterly sucked. But I haven't heard it in a long time. Sandanista is magnificent, same with London Calling and Give 'Em Enough Rope. Debut rocks as well.
As a Clash fan to compare Sandanista to Give 'Em Enough Rope. I really love the tracks The Magnificent Seven, Police on My Back and Career Opportunities. I find it amazing they did four sides on London Calling which just kicked assed and then six sides on Sandanista which while hit and miss over all is very good if you are a Clash fan. Then like I said Combat Rock came out and sucked. But going back to Give 'Em Enough Rope and the debut those both rocked with Give 'Em Enough Rope being the better.