The wavy fries have much more surface area to heat and become more crisp.
I have to buy the wavey frozen fries for the good taste b/c the regular ones won't taste good after we bake them in the oven. why would that be? What's difference?
Those are the ones we use too. I think the crinkle allows more air to circulate around the fries making them a bit crispier and evenly cooked.
I don't like any Fries done in the oven, I either deep fry them or don't eat them.