I wouldn't spend any time in Jackson Hole, unless you need to re-provision. It truly is a tourist trap and full of people in the summer, making it a little difficult to get around with an RV. I think two to three days in Grand Teton will be sufficient, especially if you are at Colter Bay. Take a cruise on Jackson Lake one day, maybe even the lunch cruise or the dinner cruise. Some of the greatest scenery in the world and you get right up to the base of Mt. Moran that rises about 5,000 to 6,000 feet straight up. Go over to Jenny Lake and take a boat to Hidden Falls and Inspiration Point and then to Moose, on over the Gros Ventre and Slide Lake( but the roads are a bit bumpy part of the way. In the evening, drive around toward Moran and then out of the Park to Moose and then back to the campground looking for wildlife, you should see some. Then, 4-5 days if possible in Yellowstone, there are so many features there that you really do want to spend some time at them. Grand Canyon of the Yellowstone is a stunning place as well as Norris and Old Faithful. Yellowstone Lake and the hotel are a place you also need to see. Then go to Mammoth over Dun Raven Pass and then to the Lamar Valley. Look for wildlife all the time, but in a motorhome, might be tough to stop and watch and take pictures. I think that one day, after you drive to Rushmore, is plenty, but stop on the way, if you can, and take a quick look at Devil's Tower in Northeast Wyoming. If you find that you can't see and experience all you want, hopefully you can always come back.
We spend about three weeks in Colter Bay with our FW and boat. Fish most of the time but also sightsee a lot. Never get tired of it and we have been going up there for over 50 years. Usually take a day and drop up to Yellowstone. Sometimes we pull the boat up there and fish as well. Yellowstone Lake is truly awesome. Above all, enjoy your trip and don't sweat the small stuff like animal jams on the highways and lack of parking space at the features.
