Argent, especially when the original guitarist, Russ Ballard, was on board writing.
Fanny, grossly under-rated and under-remembered band. Real rock 'n' roll music. They did a ferocious cover of The Beatle's "Hey Bulldog", and Stephen Stills' "Special Care" as well as their own rock 'n' roll "Cat Fever", "A Place In The Country", and "What Kind of Lover". Then they could turn around and do heartfelt songs like "Think About The Children" and "You've Got A Home".
Poco- They started what made The Eagles famous, and did it with more heart and soul than what Henley/Frey's group became. As much as I love the early Eagles (like the first three albums before Bernie Leadon became disenchanted), Poco's music always seemed more "real" for lack of a better word. While often the happy toe-tapping stuff was truly uplifting and joyous, the dark and somber stuff had realistic sub-texts, and they had great titles (like "Consequently, So Long"). But they also could mix things up by having a great upbeat cheerful ditty musically with the darker more ominous lyrics like "You'd Better Think Twice". Plus they had Timothy B. Schmit's bass playing and vocals. I've always been a fan of Buffalo Springfield and Richie Furay's contribution to that band, so Poco is very important to me. Besides what other band had TWO bass players leave to join The Egos?!
Wishbone Ash. I was in a record store one day and asked a friend of mine for a recommendation of something he thought I'd like that I wasn't aware of. He handed me "Live Dates" and I was smitten.
John