The top picture is a capture from a Canopus ADVC50 card. It shows slight combing, but there is bad dot crawl(?), tearing (?) of red, most easily seen along the top of Leia's left arm. I never really considered DV seriously to start with because of the quality loss from the format.
The center is a YUY capture from a BT8*8 chipset tv capture card. It shows combing artifacts that I've noticed in your captures and really is of poor quality. Despite the good reputation I am not impressed by these cards.
The bottom capture is from a Hauppauge PVR250MCE. To my eyes it easily is the best capture of the group. The interesting thing about this card is that it only captures in MPEG2. That's right, the image that has already been compressed shows the best quality. ***EDIT, I forgot to mention what I don't like about this image, which is the softness of the pciture***
Ok, a word on the source of the capture material. I'm using the definitive collection through a Pioneer Elite CLD-79.
Anyways, I would like everyones comments on these captures and a discussion on capture cards, and anyones personal experience with the PDI Deluxe.