A lot of Texas fans consider OU to be their biggest rival now. And as someone knowing people from both the USMA and USNA, I can assure you that the Army-Navy game is the most important game of the year for both teams. The Notre Dame game will probably be much tougher for Navy to win than the Army game will be, but I would guess that if you'd asked everyone on Navy's football team who they'd rather beat this year, at least 90% would've said Army. The thing about that is now that Navy has beat ND it won't matter as much. I look at it this way. If Army is 1-11 and their only win is over Navy their coach will probably stay. If any of those other teams are 1-11 no matter who they beat their coach is gone, biggest rival or not. You could say it the opposite way though. If Army went 10-2 or 11-1 every year but continued to lose to Navy would the coach keep his job. The answer is definitely! That isn't the case for some of the other schools on that list. No, he'd go to a bigger school! Army/Navy is by far the biggest and I can't see one that is close. It's been one of the longest and most intense and if Michigan was 4-7 and was playing a 3-8 OSU, I bet it wouldn't be nearly that big of a thing. Look how far the Miami/Florida St rivalry has fallen due to the records. If you had 4 teams in the Big 10 that pushed OSU and Michigan to 5th place or lower the game wouldn't even be on National TV but the Army/Navy game has always been and will always be on National TV.