I would love to see a Last Man Standing match added to this as the stipulation, a stip like that would fit in perfectly at this point in their feud to prove who has the most powerful finisher.
Big Show could come out on Smackdown, acting all cocky, continuing to brag about how he beat Sheamus with the WMD for the 3 count at Hell in a Cell, but at Survivor Series he wants to prove he can beat Sheamus with it for a 10 count now, Sheamus comes out pointing out that it only took 2 WMD's to beat him and that he also nearly beat him with the Brogue Kick, and says that if he had hit him with a second Brogue Kick, he would've won instead but Show got lucky and caught him with the WMD before he could connect with the Brogue Kick and had he had more time than 3 seconds that he could've kicked out of the 2nd WMD, so he accepts his challenge for a LMS match- I dunno, I could see something like that as the setup to add in the LMS stip or they can just go another route and simply have Booker T announce he's adding in the stip at the end of a Smackdown- I don't care how they do it, just so long as they add in that stip I'll be very happy.
Come match time, have them use all the weapons and Brogue Kicks and WMD's all they want but they still get back up, and then at the end have them both knock each other out with the Brogue Kick & WMD at the same time, the ref counts em out for the 10 making this one a Draw, leaving the question of the more powerful finisher still up in the air, and then have Ziggler run out, cash in the MiTB briefcase and pin the knocked out Show to win the World Heavyweight Title. The LMS match would be a perfect opportunity to cash the MiTB briefcase in, it would definitely be better than if he had cashed in at Hell In A Cell or any other PPV before that.