Is Jersey week crazy busy???

[annaemmabrent]

We have a trip planned for the week of Nov.2-9 and plan on visiting all 4 parks and a water park. We keep hearing that it is Jersey week and it is really busy at all the parks. If we really need to we can reschedule for the week before (Oct. 26-Nov.2) but we have a group of 9 and everyone has already requested time off for the week in Nov. I am also curious if it is busy the whole week or just the end of the week. Just trying to get opinions because we normally go in Jan. and are use to low crowds. Thanks