If you were given the chance to write something authorized by a big license what would it be -- i.e. an episode of Doctor Who, a graphic novel of Superman, Star Wars Episode 22 1/2, etc.?
I know lots of writers would jump at the opportunity to write Star Wars, and as much fun as writing Doctor Who would be, neither of those would be my primary answer.
For comics, the licensed property I'd most like to write is no secret. I've posted about it here before. It's DC's The Metal Men. I just love those goofy robots with their responsometers and Platinum's schoolgirl crush on the Doc. I could have a field day writing them.
As for TV properties, I'd give my eye teeth to write the adventures of Steed and Mrs. Peel. I've loved the BBC's Avengers since I was a kid, and there's enough sexual tension between those two repressed agents to give the adults all kind of fun too.
So there you have it. The Metal Men and The Avengers (the funny-speaking ones).