Regardless of how this all plays out, TCU or Boise have absolutely NO BUISNESS playing in the BCSNCG. Period!
Unfortunately I think an AU loss to either team keeps the SEC out of the NC. With all the Crystal and $$$$$ thats been coming to the conference the last few years I think the bias will show in the human voting. They are looking to put another conference in. Scandal with AU, LSU anemic offense, and the Gumps dropping 2, they got us covered. An undefeated TCU or one loss Big 10 or 12 will slide in. I am hoping against it but I get the feeling they are pulling the rug out from underneath the conference if AU drops one.
Highest BCS ranking is actually the last tie-breaker, so it can get pretty convoluted. SEC Championship Game Divisional Scenarios > SEC > NEWS