I would suggest similar lens but native 1/2 for the HDXDCAM. There are some real HD lenses with 1/2″ mounts now available.
Last I tried to compare the PDWF330 and the Panasonic 900 they would not use that as a comparison as the prices were not close enough. They wanted the F350 against the 900 but the features were not equal for others. I have seen both seperately and like the XD better as the workflow is incredible.