we have three teen monsters. we have used deluxe dining, regular dining, and quick service. I can tell you that we prefer the quick service dining. deluxe dining in my opinion is a definate waste unless you want to be stressed over how many meals you have and where you can use them etc. our kids never wanted to eat breakfast, our trip was 8 days so if you do the math heres how it breaks down.
deluxe dining is 3 meals per person per day and 2 snacks so that is a total of 72 meals for 3 guests. and 48 snacks. which could be fries or soda popcorn etc. if just your teen doesnt eat breakfast that is 8 meals that are not used.
you can figure $45 per person for sit down meals. sound like a lot but after 4 or five days you will
not want any more sit down meals. it eats into your park and touring time. and can be quite frustrating.
everyone when they get the dining plan, at first is so relaxed that the meals are paid for. then it comes the "did we eat that meal?" gotta eat.. we paid for it
with the regular dining we found we still did not use all the meal credits. each table service meal costs you at least 1.5 hours of time. also making reservations for each one means you have to be in that park at that location at that time. its hard!
if I were you I would get the quick service dining and pay out of pocket for the character meals. you will still have meals and snacks left before you leave and you have the flexibility to eat counter service whenever you feel hungry. which if you guys are like us.. wont be as much as you expect.
i forgot to ask.. are you renting a car or are you planning on using disney transportation for your trips to parks everyday?
congratulations on your first trip to the world! your gonna love it!