Ample Hills doesn't have indoor seating, but the ice cream and sundaes are SO much better than B&C, IMHO. If you want a place to sit down and be served a meal or a sundae (or the kitchen sink!), I would go to B&C, but make sure you make a reservation. If you aren't on the dining plan, you could also head over to The Fountain at the Dolphin which has a "50's soda fountain" atmosphere. The food is slightly better than B&C, IMHO. You could also eat at the Plaza in MK! They have good sundaes. Or even get to-go sundaes at the Plaza ice cream shop in MK. We like doing that and then sitting outside in the Plaza or Tomorrowland Terrace area. If you want servers to possibly say "happy birthday!" to your daughter, though, your best bets are B&C, The Fountain or the Plaza.