Great video. I think both ega and vga look good, depending on the scene (I prefer ega backgrounds but vga close up).
The music however, floppy is best and the cd version is the worst. I played with the internal speaker myself. The cd music sounds off to me, but cannot pinpoint why exactly.
Cga seems to be 1-to-1 conversion of ega. It only looks bad because of the strong cyan and magenta. But thats a hardware limitation not an artistic choice.
> Cga seems to be 1-to-1 conversion of ega
I'm not sure. The dithering is obviously different, not only harsher but in different places in many scenes. Also, the splash screen doesn't have scrolling clouds in the CGA version. And there are other subtle changes.
Call me weird but there's a certain charm to the CGA version, though it's obviously the worst of them. My favorite is the EGA version.