I am going to Disney World. Get a room with a kitchen or out to eat for everything?

I am going to Disney World this fall, I have a few options--stay at the military resort for about $350 (6nights 7 days) and pay for all meals separately (military resort actually has decent breakfast and dinner buffet prices), or rent a room at an actual Disney resort with a kitchen and make our food. I can actually get a 1 bdr villa for about $1600. I can't buy dining plans when staying at the military resort. I could also get a basic room at another resort for about $900. I need advice! PLZ! Travelling with me will be my husband and we have a 3 year old daughter and 11 year old son.