Bite your tongue! As I've stated often, I operate on the assumption that Sam and Jack have been "together" in some way shape or form since "Threads" and the end of season eight.
(Note, I've probably read at least ten different "Sam and Jack get together at the cabin" fan fiction stories. The advantage of fan fiction is when the creators of a show screw up, you get a chance to correct them.)
I'm confident that the only way Rodney got the Sam in the alternate universe this season was that Jack was dead (heroically) and she was on the rebound...
Oh, I don’t want McKay to win, I just think it would be fun to watch him try. Then Jack can pop up and propose in front of him. Sam would have to resign from the Air Force to lead Atlantis as a civilian so Jack might be a little ticked for a while that she quite for Atlantis but not for him.
Jack needs to get that advanced DNA of his passed on for the good of humanity. Of course, I suppose is younger clone could do that for him if he doesn’t wise up.