I have asked this question as well, and have not been able to get a good answer. We all know that the Samsung and Panasonic players take the 1080p24 output on the disks to 1080i60 then convert to 1080p60. For those who like myself are using a VP50, the best output to select from the above players is 1080i, and to let the VP50 do the deinterlacing.
I have heard that 1080p from the PS3 is better, but have not gotten a clear explanation. Can anyone explain exactly how the PS3 is getting its 1080p60 output?