I don't care for the Spectre. He seems more malevolent and sadistic than the criminals he hunts. I'd rather see other DC properties adapted, shows about heroes and protectors rather than demons of vengeance.."
But that's what makes him so spooky and scary! I confess that the Spectre has been one of my favorite DC characters since the days of Neal Adams at least. Depending on how he's written, he can be creepy or cosmic or both.
Done right, he's one part superhero comic, one part "Tales from the Crypt"--which is probably why he appeals to the horror fan in me.