I spent my teenage years in Columbus. I always had a sense that something was up between the fan base of tOSU and the Michigan fan base. Sort of like when you know a man and a woman who don't get along publicly, but you have suspicions that behind that friction lays some deeper feelings. Then, sure enough, you find them making out in the bathroom at a party.
Notre Dame and USC? They don't give off that vibe.
Alabama and Auburn? Nah, one will always be on top, hilding the other in cotempt, while the other will forever be a wannabe.
Harvard and Yale? Contempt, plain and simple.
USC and UCLA? See Alabama and Auburn
Texas and Oklahoma? One would do ANYTHING to screw the other.
Army and Navy? Even when they are 60 the dislike continues.
tOSU and Michigan? They share that they desperately want the world to pay attention to them. You get a sense that they live for one another. You don't get that with any of the other rivals.