Kind of a loaded question isn't it, because the correct answer to which one is healthier, is neither. That said, well made nachos are awesome, i.e. Waterfront Ale House (Atlantic Ave Brooklyn and 31/32st and 3rd Ave Manhattan) venison chili nachos. As far as a stand alone item, generic potato chips are kind of a waste, but the kettle chips salt and vinegar are good, and if you ever have the opportunity to dine in a Spanish restaurant, freshly made thick cut fried potato "chips" are sickeningly good (i.e. you eat so man, you invariably get sick). If you want to try and be healthy, the Baked Lays, esp the flavored ones, are decent, but as with all "diet" products, most consumers will just eat, and then buy, more. Best snack food IMO. . .instant popcorn with no fake butter, 120 calories or so for a decent size bag