Per Allears.net, Wdwinfo,:
Value Resorts:
All Stars Movies, Music, Sports 260 sq ft
Pop Century 260 sq ft
Moderate Resorts
Carribean Beach Resort 340 sq ft
Coronado Springs Resort 314 sq ft
Port Orleans French Quarter 314 sq ft
Port Orleans Riverside 314 sq ft
Deluxe Resorts
Animal Kingdom Standard room 344 sq ft
Animal Kingdom Deluxe room 381 sq ft
Beach Club Resort 380 sq ft
Board Walk Inn 380 sq ft
Contemporary 436 sq ft
Grand Floridian Resort 440 sq ft
Polynesian Resort 409 sq ft
Wilderness Lodge 340 sq ft
Yacht Club Resort 381 sq ft
As far as I can tell from those web sites this info is correct.