My favorite 70's artists were Elton John, Cat Stevens, Jethro Tull, Led Zeppelin, The Eagles, ELO, and Styx. My favorite artist, all-time, any music genre, Muddy Waters, made a big comeback in the late 70's thanks to musician Johnny Winter, a fine blues musician himself, who kind of took Muddy under his wing and helped Muddy produce a series of great albums from 1976 through 79. I almost forgot David Bowie and Queen. Also I really liked Paul McCartney's 1970's output, easily the best of the ex-Beatles overall in the decade.