Feed him what your comfortable with, what's available in your area and what fits in your budget. And since you're pretty young--what your parents will agree to!

I used to be much more opinonated about this subject. Then I adopted a dog who had been starved by her first owner. Three years later, she still has issues with food, she always will. Now when I see someone with a cart full of Ol'Roy or a similar food, I think "at least he cares enough to buy his dog food!"