Crunchy by far. The puffy ones quickly deteriorate to a sticky mass of gelatinous goo in my mouth that loves to bind to every surface of my mouth (but mostly to the ridged roof of it) and between the cracks of my teeth, which results in me having to spend copious amounts of time scrubbing it off with my tongue afterwards. My poor tongue frequently comes out on the other side of said copious amounts of time feeling very sore and unappreciated. Additionally, this residual mass that must be forced from between my teeth and out of the dark nether corners of my mouth is never as tasty once removed, as the cheese flavor has already flown the coop during the first two seconds of salivatory breakdown, and has been replaced by the bitter and all too familiar taste of tooth plaque. So, when given a choice, I will always sway towards the bag of crunchies. If, however, there is not... I have been known on occasion to overlook the aforementioned attrocities of puffy Cheetos for the chance to ingest some of their entirely too addictive cheesiness.