Mr. Mojo said:
A Serious Man is their worst.
Preposterous. Intolerable Cruelty has to be their worst (least creative) and its not even really close and it's not like it's bad but it's probably the only one you couldn't immediately tell there were a couple geniuses behind it.
A Serious Man is one of their best and would have won Best Picture that year if I was the only person in the world voting.
I'm glad most people don't care for Ladykillers (except for jdoggy), it's like my own little special treat when I watch it.
If I was limited to watching only one filmmaker's works for the rest of my life it would most certainly be the Coen's.