I would say it's a toss up between the Wilderness Lodge and the Polynesian, but I would go with the Polynesian for a few reasons. 1. While we've never had a problem with the transportation from the Lodge, some have. We enjoy the boat ride to the Magic Kindgom, and the bus service is ok. At the Polynesian you have access to the MK monorail at the Great Ceremonial House, plus you can walk to the Ticket & Transportation Center to get the monorail to Epcot. There is also a boat that goes from the MK->Grand Floridian->Polynesian->MK. 2. The Wilderness Lodge is smaller, more intimate, and the lobby is stunning. The Polynesian's grounds are absolutely beautiful! From the tiki-torches to the tropical plants, to walking along the beach and seeing the Castle... it's wonderful. Plus, you have the option of hopping on the monorail to go to the Contemporary or Grand Floridian for a bite to eat. If it were just your family, I would say the Lodge, but with your in-laws, I would choose the Polynesian. But beware - they will be spoiled!