I agree. I don't each fast food much at all, but the only craving I get is for McDs fries. When they are done right they very tasty regardless of how unhealthy they might be :)
I used to prefer McDonald's fries, and I still prefer them over other fast food, but most bars and sit-down restaurants seem to have better fries to me now. (And, unlike McDonald's, they will give you barbecue sauce.)
More recently they will only give you one bbq sauce with their chicken nuggets, and even asking for an extra one isn't free. Asking for bbq sauce w/ fries is an extra charge.