Darlene:
If you're wanting short travel time to the parks and great amenities, the Epcot resorts--or Magic Kingdom resorts--are solid choices.
If I had to recommend one Epcot resort, it'd have to be
Beach Club. It's Stormalong Bay sports a lazy river and a sandy beach perfect for your girls to build their own Cinderella Castle! Best of all, it's home to the Cape May Breakfast Buffet with Minnie and provides boat transportation to Disney Studios and Epcot!
In the Magic Kingdom area, my vote has to go to the
Polynesian. Can't afford a Magic Kingdom or lake view? Get a standard room that looks out to the monorail and your kids will probably be more impressed! The "erupting" volcano at the pool makes it a favorite spot, not to mention the nightly water pageant at the pier!
Wishing you a magical vacation!
Whitney