You don't mention a budget. You have tons of options. If you could swing it, one of the monorail resorts would be fantastic since you have two young children but they get pricey and it looks like you want two rooms. I am confused though. You stated 3 adults but then you stated yourself and 2 kids. Anyhow, another option is one of the family suites at either all star music or AoA. Everyone could be in one room and your dad could take the bedroom with everybody else in the living area. These rooms also have 2 bathrooms. When is your trip? Another option might be to rent DVC points from a DVC owner and stay in a 2 bedroom villa. This isn't the best option if your trip is close though.