The OP has lots of ideas.
I'd be down for
Favorite Friendship
Quotes (depends on which character, though--someone who has good quotes, obviously--it looks like the character with some of the best quotes, Murphy, has been done)
Maybe an episode Survivor, but that might be harder for those of us who haven't rewatched yet. But maybe a Season 3 episode Survivor? Or is that too recent? Idk
I could probably be talked into running another one if it was Bellamy/Bob-related. 
Thoughts? Ideas? Anyone have one they're just dying to do?