The PS3 and the 360 load the cells differently after the devs tweaked it, also I'm pretty sure that the 360 footage wasn't using running the patch that also tweaked it.
Umm, are you stupid??
360 12x DVD: 16.0 MB/S
PS3 2x BR: 9.0 MB/S
The technology of bluray is much faster, but since the PS3 only uses a 2x drive the DVD drive still has faster data transfer.