Most underated albums......

Are these "under-rated" (which assumes widely known, but largely panned) or "under-appreciated?"

Whatever, I'm throwing the following into the mix:
Richard Thompson: "Henry The Human Fly"
Procol Harum: "A Salty Dog"
Joni Mitchell: "Hejira"
anything by Nick Cave

John McLaughlin with Shakti is outstanding! He's always had an eastern infusion to his music, and the Shakti stuff is great!

I also really like the disc he did way back when with Carlos Santana, "Love, Devotion, Surrender."