Sounds like a fun traveling group! There are several options for a party 6. Here are some;
The
Cabins at Fort Wilderness accommodate 6. They are very nice, with many more amenities than a typical room, but transportation time from the cabin to a room are a lot longer.
Disney Deluxe Villas come in a variety of configurations, and can easily accommodate 6. They get you closer to the parks, give you great amenities, and are ideally located to a number of different Walt Disney World sites, but are more expensive often. My favorites are the Beach Club and Boardwalk Villas, but the are all quite nice.
At the
Value Resorts they have started creating Family Suites that will be a bit tight for 6, but doable.
I think that these are all good ideas, and cover some different budgets and interests. I would suggest that you start by looking at the pages I link you to here for the Value and Deluxe Villas, and look at the Cabin just in case you happen to like their unique offerings!
Have a magical vacation!