I've posted this elsewhere, but will give a summation here for your enjoyment:Let's say Liz wins immunity and must choose between Amber and Tina. The vote Liz v. Tina would likely be (for each):
Liz: Rodger, Alicia, Nick,
Tina: Colby, Keith, Jerri, Amber. Rodger might even vote Tina instead of Liz.
However, Liz v. Amber:
Liz: Rodger, Alicia, Nick, Keith (won't vote for Jerri's pal, wooed away by Rodger), possibly Colby, possibly Tina.
Amber: Jerri. Possibly Colby and Tina.
As you can see, Liz would rather face Amber than Tina, if present alliances/friendships hold up. IMHO, Tina is the only one that makes this scenario work.
If Amber wins that Final Immunity, she has a bigger problem. She gets devastated if she keeps fellow Ogie Tina. Keeping Liz would be her only hope, although I think she might lose anyway. Then again, maybe the Ogies like Keith and Tina would stay loyal. Then again, Amber voted Tina off and Tina might "repay" the favor with her and Keith's vote for Liz.
So if the Source Code Theory holds, then Liz is likely the Winner.