I would agree go tj if you can they are newer and tend to rust less. If a DD in your part of the country I would look for a hardtop. If possible a 4.0 but they tend to bring a higher price. If you do get a 2.5 or 4 cylinder tj keep the tires under 31 inch tires and if it is a manual it will be good for around town. They cost less because they do not have the power for bigger tires. The drawback is 4 or 6 both get about the same mileage.
FYI TJ or YJ they are not good on gas.
Good luck in your search and as a father of a new driver please be carful!