Picking a favorite chip brand is hard, but there's this brand called Zapps that sells these things called "Cajun Crawtators," and that shit's off the chain if you're into mud-bugs. Next to that, I'm pretty partial to dipping cheese Doritos in some salsa instead of real tortilla chips (cuz I'm classy like that.)
As far as sodas go, I'm all about some cream soda. Although all the brands are generally good, I like the clear varieties instead of the brown ones cuz my teeth suck these days. However, I used to be a pretty heavy drinker, and during that time, it was all about the brown cream soda, cuz ya can fill the bottle half up with whiskey and drink it anywhere in public and it just looks like normal ol' brown cream soda. Plus, whiskey tastes WAY better with cream soda than coke. If ya don't believe me, try that shit.