Boards
Bands who did a good album followed by a bad one
Hundred Reasons - Apart from What You Get, Pop and Makeshift, Shatterproof is pretty damn poor. And Ideas... was so good.
QOTSA - The last one was pretty shit but Songs... was just sweeeeet.
Radiohead - Kid A = good, Amnesiac = not good
Sonic Youth - In all honesty I haven't heard Experimental Jet Set, Trash & No Star but with a name like that it cant be good and it came after Dirty which is like totally their best album.