I believe the cheapest is the most popular and I think it's payless instant noodles. I also see some cheap from in the supermarket but they are not popular and can not be bought in retail stores or the local sari-sari store here in our place. Noodles are best when cooked homes style and mix with real vegetables. I am not particularly fond of instantly noodles and when I want some noodles for soup, I prepare rice noodles called Miswua l mixed with Patola and eggs. They are more nutritious and also cheap.