What I'd Do Doesn't Matter
Welcome aboard the RoadTrip America forum.
The whole point of the traditional American road trip is the freedom it allows to do whatever YOU want. For some basic pointers on how to start planning, check our first things first page. Note that you don't have to come up with details right from the start, but any suggestions we might have would be a whole lot more to the point and useful to you once we know what you want out of the trip. We have to know at least where you'll be arriving/leaving from and what your interests are. What might be a "must see" to me could easily bore you.
AZBuck