These are forgotten by history? I hear every single one of these bands every day on Rock 101. Where I work, the shop radio has a homing function. Change the station to whatever you want, and it'll wind up on the classic rock station before very long even though the morning hosts are beyond moronic.
"CFMI 101.1 FM Vancouver. Tired of the same old sludge day in day out? Good! Neither are we!"
Can also add Kim Mitchell/Max Webster, Aldo Nova, Platinum Blond and every other Canadian band over the last 40 years in there.
First time I heard Nazareth I was immediately puzzled as to why I hadn't heard of them earlier. Such a great band.
I would vote King Crimson, as well. Toto is another good band not talked about too much these days. And Wishbone Ash and Ten Years After are two, not-so successful, but awesome bands I rarely ever see mentioned by anybody - anywhere!