What is the best Chicago electric blues album of all time?

Howlin' Wolf

The 1962 'Rocking Chair' album by Howlin' Wolf is a Chess Records landmark featuring Willie Dixon's compositions and some of Wolf's most ferocious performances.

Born Under a Bad Sign

Albert King's 1967 Stax Records album fused Chicago-influenced electric blues with Southern soul and gospel, and its title track became one of the most covered blues songs ever.