Rivalry has nothing to do with relative success. KSU is ku's rival and so are we as we all hate each other.
KSU considers KU to be their rival but I don't think most KU fans really consider KSU to be a rival. There has to be some relative success involved. There aren't many years where KSU and KU are battling at the top. A rivalry doesn't have a clear definition; it's much more organic than that. I really thought KU-Texas had a chance to develop into a great rivalry. We had some epic battles with KU year after year. Unfortunately, Barnes was unable to keep up their end of the bargain. Add to it that their fan base is pretty apathetic to their program.