Shot some 5D3 H264 today and yikes it looks bad compared to raw. Had to do a budget interview and my client couldn't pay more. Yikes!
I think this is just fanciful thinking. I shot a musicvideo and as a test, embedded 4 shots show in raw in between the H264 shots. It's not that apparent which ones they are. http://www.youtube.com/watch?v=ZsocmqinVpQ