You made a good choice! And I love the Tropicana, but there is nothing about it that can compare to the DLH because the Tropicana is a motel (a very nice, clean one) whereas the DLH is part of a resort. The pool is incredible for kids, the rooms are much larger than the Tropicana ones and you have interior hallways, onsite dining availalbe (everything from a quick, take out burger to room service, to character meals to a very nice steak dinner). You will also be able to take advantage of Magic Mornings, each day they are offered by staying onsite. Certain days of the week, parts of Fantasyland and Tomorrowland open one hour early. A typical park hopper will let you do that one day. Staying onsite lets you do that as many times as its offered during your stay. You can also have purchases you buy in the park delivered to the hotel for free. Very nice and can save you lugging around that big stuffed animal your kid had to have or worse, leaving it on a ride because you forgot it!
Have a great trip, your kids are going to be in sheer heaven.
And I had a trip of a lifetime to the DLH about five years ago. Since then I have taken about ten more trips of a lifetime!
Oh and one more thing, be sure and take your kids to Goofy's Kitchen at the DLH. Its a wonderful experience where they can dine and have several characters come to the table for pictures and autographs. They get to dance with Goofy and its just so much fun. Its pricey, if you have
AAA, they give you a 10% discount. They serve breakfast, lunch and dinner each day. You can call: 714-781-3463 up to sixty days in advance to make a reservation. Have a wonderful time with your planning and your trip!