I still read both and consider them two of the most reliable sources of domestic journalism. Their non editorial sections are of very similar qualities. Their editorial sections are both political hackery.

Agreed. I believe the lines between editorial and news has become (purposefully?) blurred, or at least many no longer recognize the difference. It can be interesting to see how headlines and emphasis on news stories in both publications can differ for the same topic, but they both follow a predictable standard. As you suggest, the editorial boards are echo chambers, but they both give time to opposing views there, as well.