X2 on Jim Shoe's comments.
I have always said that Yellowstone is spectacular due to it's features and Grand Teton is magnificent due to its beauty. We live about three hours, dragging our FW and boat, from Colter Bay Campground in Grand Teton and make the trip about three times during the summer to fish and sightsee. Some people will call me cheap, but Leek's Pizza Restaurant is where we celebrate our anniversary, and have for about the last 15 years or so. Good pizza and beer and the view from the deck facing the lake and mountains is simply to die for.