OU!
Sooner Nation Baby

I would say oklahome but go Longhorns

Definitely Oklahoma!! But I dont think second would be A&M more like Texas Tech. Check out the Red River Shootout!!!!

Its Oklahoma THE RED RIVER RIVALRY. That is this weekend as a matter of fact.

Now probably Oklahoma
But earlier I'd say A&M because Oklahomas was always Nebraska Remember Oklahoma was Big 8 and Texas was South West Conference.

Texas OU weekend
GOOOOOOOOO HOOOOOOORNNNNNSSS!

OU, hands down.

Without a doubt the Soooonners!!!! There is such an intensity in that rivalry!!! Being in the Cotton Bowl is like nowhere else in the country.......There is such an amazing atmosphere........

Go Sooners...I mean Longhorns......OH GOSH WHO KNOWS....Hopefully its not another blowout!!!

I think OU is the biggest threat, but I am sure that A&M is the instate rivalry.

the aggies

ou

I'd have to say Oklohomo.....

OU

There was actually something about this if you watched the beginning of the Texas A&M game last week. It was said that Franchione from Texas A&M says that Texas is their biggest rival but if you ask Mack Brown from Texas he says that Oklahoma is their biggest rival. So I guess it depends on what school youre supporting.

OU sooners

Wow--I can't believe there's so many wrong answers here! LOL. I guess none of you guys live in Austin. Well, I've lived in Austin for 13 years and can tell you that the Longhorn-A&M rivalry is more intense than the Red River Shootout. Yeah, the Sooner game USED to be bigger, maybe--but that was back in the days of the old Southwest Conference when Oklahoma & Texas were always slugging it out for the title.
But there is no more SWC--it's the Big 12 now (and theree's TWO of those!) So the game has lost lustre. But do to geography (College Station is only a two-hour drive from Austin) the A&M game has taken over as the big one. Plus, the difference between the two schools is like night and day, it is more than a game--it is a true culture clash.
Hook 'em Horns!