Most underated albums......

roger waters - radio kaos
tom waits - blue valentine
ben harper - fight for your mind
richard thompson - mirror blue
pink floyd - obscured by clouds
crosby,stills and nash - CSN (from 1977)

k.d. lang - Absolute Torch and Twang
Mark Knopfler - Soundtrack from Local Hero
Grateful Dead - Reckoning
Tangerine Dream - Rubycon
Marshall Tucker Band - Where We All Belong

I guess I must be one of the people who under-rates "Mirror Blue". I'd probably rank it dead last among Thompson's solo work. Some good songs, but the production is a disaster. Mitchell Froom should be tarred and feathered. But I can see where someone else might like it. . .

I could list hundreds here but I'll only mention one....."This Was" by Tull.. Their first and way best album. A blusey great with Mick Abrahams on guitar. Abrahams, also overlooked and underated,left after this album to form Bloodwyn Pig and a couple of solo albums then fell off the map.Tull never made an album to get back to the heights of "This Was". The whole band was on fire for that disc and never sounded or played better. They had far more commercial success and recognition later with "Aqualung" and several others but they never made another as good.