While I generally agree with Buck's comments that generic answers to food questions are really really tough, but your responses have me even more confused. The places you've listed are not one of a kind locations. Bob's Big Boy has locations throughout the country, the one in Baker isn't even the first of the franchise, and Whataburger, while started in Texas, can be found in every southern state from Florida and Georgia to Arizona.

I will also agree with Buck that your plan to drive straight from Fort Worth to Vegas straight through is foolish, and quite frankly dangerous. What's even more puzzling is that you would try to make this drive by going all the way down to Midland and El Paso, which adds 150 miles from the more direct route via Amarillo and I-40.