We specifically moved our trip to the second week in Feb. to avoid the cheerleaders. In all honesty they're not "horrible" but I have a low threshold for tolerance. They barely affect the wait times at all and the CM's are excellent at keeping them from cheering. In fact I took sadistic pleasure in watching groups of cheerleaders being thrown out of the park for doing flips and stunts.
The problems start when you're on a closed in ride with them. For example, my boyfriend and I got packed into the Tower of Terror with a cheerleading team and their coaches. The coaches ENCOURAGED them to scream the entire ride. (Had a horrible headache afterwards.) I was more angered by the poor behavior of the adults than I was by the kids. If you are concerned about them ruining a ride experience ask the CM to wait for the next car/boat. Most are very sympathetic.
The problems start when you're on a closed in ride with them. For example, my boyfriend and I got packed into the Tower of Terror with a cheerleading team and their coaches. The coaches ENCOURAGED them to scream the entire ride. (Had a horrible headache afterwards.) I was more angered by the poor behavior of the adults than I was by the kids. If you are concerned about them ruining a ride experience ask the CM to wait for the next car/boat. Most are very sympathetic.