[Which of the two pilots for Doorways would he prefer be used if it was picked up for airing on television?]

The original version, as seen in DREAMSONGS. Although the second half of the pilot as filmed could be used later as an episode.

[Who would GRRM cast in a new Doorways series?]

I love the cast we had. Anne LeGuernec, the French actress who played Cat, was wonderful, and would have become a major star if we had gone to series, I think.

[Television scripting vs. fiction writing.]

The forms are definitely different. Television and film requires a strong sense of structure and a good ear for dialogue. Prose requires... well, those, but also a good feel for, well, prose. (Nobody cares about elegant languages in the body copy of a screenplay).