I was a huge fan and I bought all of their albums up until Wasting Light: that's were they lost me.
Most fans praise that record as one their best but, for some reason, I've always found it unisteresting and boring.
From there my fandom went downhill... Their recent stuff does nothing for me. They're still a marvelous live band though.
I still occasionally listen to the old stuff, but they're not as appealing to me as they used to be ten years ago.
My favourite works have always been the self-titled debut, In Your Honor and Echoes, Silence, Patience And Grace.