Mine are maybe of a slightly different taste to some here.
U2 - Pop completely bombed in the US and didn't do very well here either, but I think it's a very cool record that sounds like a band living on the edge of their comfort zone.
Bloc Party - A Weekend in the City Their first album was a breakthough instant hit here, then this one was felt to be a damp squib, the following album was thought of as a return to form. But for me the songs on this album are open and heartfelt, and I don't listen to it much because there are moments I find pretty damn emotional.
REM - Up They lost their drummer before this record and most of their fans immediately after it I think. I guess I like the sound of bands that are struggling to find themselves again. Much more interesting than the 15th Pearl Jam album that still sounds quite like the first one.