the week before Tday will be great. the week of Tday will have some crowds build but not an issue. staying onsite will give you the hotel perks of early entry, which is one hour prior to the official park opening. in that EE, the HP section of IOA has been open. we don't know yet how EE will be for the studios side for the new HP section that is opened now. (soft openings for ride) all hotel guests are allowed unlimited usage of the express lines for the park rides and shows. you will find some things in the parks that you will want to do repeats on. there are some newbies to the Darkside that feel a short visit is enough while others make it a week vacation. if you concentrate a lot of the rides and shows in the parks, that could fill the daytime easily. you can pool hop between the deluxe and Cbay hotels, do restaurants at the hotels, and city walk. Blue Man Group can be an evening you all could enjoy. it's a family show that is worth seeing at least once. i do long stays in october and take my time. i do a few mornings in the park then hit city walk to explore. i also enjoy visiting the other hotels and their pools. i make it a relaxing vacation and take it leisurely in the parks. it's my one time in the year i can take it easy and not have a fast pace in my days. the character breakfast and dinners are enjoyable for the entire family. some just want to take in the rides and cover the parks in two days. i couldn't do that as there is more to an Universal vacation than just rushing through everything for me.