Yes, I am having the same problem. If I export an H.264 .mov at 6000 kbps from premiere it looks horrible. The same export from FCP7 or QT Pro looks great. I don’t think I can export a QT Ref from PP (right?). What I’m trying now is to export from Media Encoder.
Open Media Encoder and import your PP sequence. The export options are different so instead of exporting 6000 kbps I did Target Mbps 6 and Max Mbps 12.
Media Encoder allows VBR, 2 pass whereas I cannot find that from PP.
The default is a .mp4 instead of a .mov but that doesn’t really matter so I let it stay a .mp4.
The speed of the export is that of a snail through Media Encoder. Again, I’m not doing an apples to apples export but still… The result is what you would expect of an H.264 though so it is a good option if you have the time.
Nathan McAlpine
FCP and now Premiere Editor