Yes, when it comes to dickhead levels, mu fans beat ku fans; although the johnson county based ku bandwagoners give mu fans a run for their money.
The difference in the two fan bases:
In Columbia, MU fan gets right in your face and says "F*ck K-State" and then stares at you to see if you are willing to throw down.
In Lawrence, ku fan yells "F*ck K-State" and then ducks behind everyone else in the crowd so you won't know who said it; then the entire crowd agrees with each other that ku fans don't use profanity.
KSU has a good mixture of both types.