There are several threads about this with more info, if you want to search. I believe I read that Pop Warner will be there the next week, not the week you're there. They stay at the value resorts for the most part, with some spill-over into the moderates (it was POFQ last year, I think). The people who stay at the same resorts as the kids are the ones who seem to have the most issues - crowded pools and food courts, noise, etc. Their impact on the parks is minimal, since they are otherwise occupied most of the time. We were at WDW during Pop Warner week last year and stayed at CBR, so we barely even noticed them.