These college football teams may be favored but it doesn’t mean they will come out on the winning end of their Week 13 games. Welcome to Week 13 of the college football “upset watch” here at Athlon Sports! Last week, all five teams on “upset watch” survived, although Michigan and Boise State certainly made things interesting. This week is “rivalry week” in college football, and rivalry games mean open season on potential upsets. The records get thrown out the window. The pressure is on the favorites to win and stay in contention for division, conference, and in some cases national…