I'd take barebones anamorphic with the original theatrical mixes. With DL there should be enough bitrate even for a 4.1 (downmix from 4.2), 2.0 and 1.0 track on the same DVD for Star Wars. I think there are only 2 theatrical mixes for the other two.
High: 448/256/256 (960 kbps)
Low: 384/192/96 (672 kbps)