We have been going to WDW in the first week of December for most of the past 9 years, and even stayed at All-Star Music in 1997. Through most of these visits we have not seen much to complain about from the Pop Warner kids. A few loud cheerleading groups, some running in the parks, but overall not a lot of problems. We have seen as many problems from kids not in Pop Warner.
This year we were at WDW from 03-07 December and saw little of the Pop Warner group until Thursday, when we went to MK knowing it would be busy.
We would not base our decision on going to WDW on their presence, although we probably not want to be at WDW for the last few days of their meet, as more of the teams would be in the parks then and it would be that much busier.
We understand many people were bothered by some of the PW teams and it would be a good idea for WDW to get a little more strict with the large groups they host, to avoid annoying other guests. Maybe WDW can assign CMs to monitor the activities of the groups, one CM to each xx number of kids. It seems like a small cost to insure everyone has a good time and to keep a very small minority from giving a bad name to the whole PW group.