Buying a new f150 truck

Looking to buy a new F150 truck. Looking between v8 and 3.5 powerboost. Power boost seems a little better on gas than the v8 but only slightly. I do about 2 hours of highway driving everyday. I would like to mention I might buy a dump trailer in the spring. Longevity wise, which would be cheeper to own? Does one have a better ride than the other? Thanks in advance.