That is my impression also.
I just completed viewing the DVD and Blu-ray versions of portions of the movie X2 X-men united. I sat about 3 feet away from the screen. There was absolutely no differences in quality of DVD or Blu-ray. Panasonic and OPPO looks exactly the same.
One minor problem I experienced with the OPPO through all of this is when I put in the X-men DVD, the system locked up with what looked like multi-colored static on the screen that didn't move. I had to turn the unit off and back on to get it working again.
