I agree, the first-sentence promt can be very inspiring. Especially if it is not too long or has too much of a voice that doesn't fit you. I had that once for a contest I participated in, a couple of paragraphs to start it off, and I had a really hard time, until I found out you could re-write some of it.

Anyway, I'm definitely in favor of doing a Lite Club prompt with one. And letting people choose from the several first lines would also make it open for anyone to join in.