I will contribute a cliche under appreciated (but not on this list
probly) - the early Bee Gees.  I got the re-issues of the first three
for xmas - and the first especially is a new favorite.

... and maybe The Optic Nerve and The Faces - some other recent favs
that were at least under appreciated by myself.

... and the Ramones cuz you can never appreciate them enough.

-- 
Lee Elliott