Best Path for PhD in Engineering - which Undergrad Major at which Colleges?

Concentrate on getting into a solid undergraduate program (most ABET programs are solid). Graduate school will take care of itself. By the way, you don’t select the grad school; they select you.

In addition to your home states, apply to a private or out-of-state school that you can afford. In addition to U Kentucky and U of Oklahoma, consider the U of Alabama-Tuscaloosa. Also, the South Dakota School of Mines & Technology is a very rigorous university that is very affordable and has a great national reputation among professional engineers.