List great under-used/under-appreciated comic characters.
I always thought The Phantom Stranger was one of the biggest wastes of what could have been an incredible character.
Granted, I've never really followed him or DC in general, but just from seeing his appearances from the periphery I can see he's being under-used.
The past couple days I've been putting little pieces together of what would make a kick-ass story for him and from looking at his wikipedia, it doesn't look like it's been done before.
List some of your favorite characters that no one is doing anything with.