Would make a better tv series, if done well enough.
Focus mainly on the human characters and the stuff that goes on with them while the endless pass through their lives.
Have the rare episode that focuses on Dream or whomever.
Either way, film or tv, it will never, ever be as good as the books. It's just not possible to fit everything in, without either stretching it out way too long, or losing the meaning behind a lot of it by cutting parts out.
I'd still love to see the Endless on the big screen with high production value. Purely for the look.