I loved Plans!
But agreed on Rilo Kiley - that album was terrible in comparison to their other stuff - I blame the move from an independant label to a major, which kind of said - 'ok, twee's cute, but your singer's cuter, lets create an indie Christina Aguilera so that the boys will rush out, buy the album and a box of tissues'...
I'm not normally a fascist about major labels, I tend to think it benefits more bands than it hinders, but
a) I'm a saddle creek fetishist and
b) they took all the personality out of that album.
Another disappointing album was Mansun's Little Kix - they did Six, which was all brilliant proggy goodness and shat over the dying embers of Britpop, and then created a follow up consisting of MOR, radio friendly bilge that would make even Richard Ashcroft yawn.
It was a long time ago, but I still feel cheated, damnit!