Let's say that, hypothetically, I have captured the following two streams:

1. 720x480x29.97 (captured with Huffyuy)
2. 720x480x29.97x10MBPs (captured with DVCII's MPEGII)

Is there a significant difference in the conversion of these streams to the XSVCD format of 352x480 or 352x240 and a bitrate of around 2.2 or so?

If so, which is the higher quality XSVCD?

Thanks