I'm planning to take my wife and her family (parents and brother+sister) on a cross country road trip from Southern California to Maine where my family lives, and then back to California. On the way there I plan to take a southern route, and I have a pretty good idea of the places where we're going to stop, but I'm not so sure about the way back.
On the way back I want to take a northern route at least until Chicago, then I have a decision to make. I can stay north and take them through South Dakota and see Mt. Rushmore and then Yellowstone, which from what I've seen on tv is absolutely beautiful, and then drive south through Utah, Las Vegas, and then back home.....or I can go through Nebraska to Denver, then through the beautiful Colorado mountains and then down to the Grand Canyon in Arizona. We'd also be able to visit Moab, UT on the way to the Grand Canyon.
Can anybody help me decide?