I have only stayed in the Deluxe with 2q & sofa sleeper, We are a family of 4 (kids 11 & 13) and thought the Deluxe was big enough for us. We were not in the room that much anyway. You will definately have more space & privacy in the Kids suite if that is what you are looking for.
We did not find it a hassel to walk to car. Maybe we were just lucky, but we seemed to always find good parking spots. Many times after leaving US we would walk the back path to the hotel, and just walk to our car from there. Very convenient.
jodi