1. Would you fly or drive? Why? - I would fly but strongly recommend that
you drive if you've never done this trip before. Some absolutely gorgeous country out there, especially if you make a diversion to Zion National Park.
2. Where would you stop? I'd like to make Provo, Utah, on the first day, but I'm worried that's too ambitious. - I recommend somewhere in or near Zion National Park on Day One, then a longer day to Jackson on Day Two.
3. Are there any cool things (not too time-consuming) along the way? - Las Vegas for an hour of slots?
4. What things should we not miss in northwestern Wyoming? - Um, there's this kinda famous park called Yellowstone...