Below is a survey currently being done by our mothership, SBNation.com, about what everyone thinks is the biggest college football rivalry.
Notice that Nebraska is nowhere on this list. There's no Nebraska vs. Oklahoma. There is no Nebraska vs. Wisconsin. There's not even a Nebraska vs. Iowa, even though that concept might generate a lot of web hits due to blasphemy. I find it rather ironic that that biggest argument against Iowa being a rival is that rivalries are supposed to “take time to develop” and “be organic and not forced”, while at the same time Nebraskan fans accepted Wisconsin as a rival without any hesitation whatsoever.