Uhh, I was pretty sure the PSX/Saturn versions had some/all new footage. But I'll admit that some of the (admittedly few) Lunar 1 videos and pretty much ALL of the Lunar 2 videos are very impressive for Sega CD. Very well done.
Anyway, I voted for the SCD versions based more on gameplay, as well as nostalgia. They are the first, and they rock. The GBA remake of Lunar doesn't even have proper overworld, but that's another story...