I would request a ground floor room as close to the main building as possible. With a ground floor room, you have a patio. The upper floors in the garden wing do not have balconies, and it is nice to have that little extra space. The closer you are to the main building, the easier it is to get to the buses, the monorail and the food center. I think you have made a great decision, especially since you are traveling at a busy time with small kids. We were there in August, also a very crowded time and had no problems at all with the monorail, but often had waits for a bus. Another thing to remember, since you are on the monorail line, if the bus lines at the non-monorail parks are long, you can get on the bus for one of the other monorail resorts and pop "home" from there. Sometimes they share buses, but not always at busy times. This won't probably won't get you home faster, but my kids always do better "moving" than standing in line, so when they were little, I would do this. Good luck and have a great trip.