I loved the English hard rock bands of the late 60s/early 70s. There were only a handful of American bands that I liked. ZZ Top, Johnny Winter, the Allman Bros...maybe a bit of Aerosmith, BOC, Hot Tuna.
Zappa and Beefheart were something else entirely and didn't fit in to this, although the various Magic Bands could play some mean, heavy blues at times.