1988 Dodge Dakota vs 1990 Jeep Grand Wagoneer ?

I cant decide on which to buy. The dakota is $1200 with a 5 speed, V6 and 8 ft long bed and the wagoneer is $2000 is an automatic with a V8. They both have a little rust around the usual spots like the wheel wells and the quarter panels. Which get better gas mileage and which is more dependable? I only plan to use either of them as my daily driver. Also, which is easier to find parts for?