Favourite idea for merging two games into one?
Hmmmm, this is a tricky one.
Merging settings / genres isn't really my bag and merging systems doesn't really float my boat either.
But if there were to be a "mash up" that I'd play/run it'd probably be something that takes elements from the following settings -
Sherlock Holmes / Murder Mystery / Conspiracy Theories galore type thing
Sci-Fi Pulp Setting - Buck Rodgers, Flash Gordon esque
Throw in some evil corporations from the future and a totalitarian government.
For anyone that's played the card games Coup or Resistance that kinda gives a feel for what I think this would look like.
That said this might be what Evil Hat have in mind for The Dystopian Universe RPG.