Small note on ATKM

I'm apparently reading the "restored" version of All The King's Men. Professor Noel Polk went back to the original manuscripts and restored the book to Penn Warren's original, rather than the edited version. In a NY Review of Books article, Joyce Carol Oates apparently took Polk to task for this by saying it was unethical to do this to the book. So now I feel that I'm going to have to compare the two versions. I never thought this would be such a difficult endeavor. Willie Stark or Willie Talos, the characterization should be the same, right?