Underrated bands from the late 80's/early 90's

[11t]

I have been thinking about this for sometime and my answer is that the Smashing Pumpkins are totally underrated. They released several major records, all to critical acclaim although Adore was not well recieved by the public. If I recall correctly, they sold ~10 million records and they flat out [censored] rock.

The pumpkins can cover the entire panorama of music, from gutteral guitar's to almost dreamy/lullaby love songs.

You could probably put Tool in there as well but Tool has such a massive and extremely loyal fanbase that you could probably call them overrated to an extent.

Anyway, what other bands that flat out kick ass are under the shadow of Guns N' Roses, Metallica, and Nirvana from the late 80's/early 90's?