Who am I kidding? Most of the grown-ups I know would eat any chocolate chip cookie that happened to find its way into their personal airspace. Given a choice, though, most will express a firm bias on a number of variables, chewy vs. crisp being the most hotly contested. Secondary considerations include whether or not to add nuts, the supremacy of milk chocolate over dark (or vice-versa), the tyranny of including oatmeal, the imperative to underbake, size mandates, eat them warm? Serve with milk?
My personal preference is for a nicely-browned cookie with a satisfying crunch, nuts included, ample but not super-sized, and a little on the salty side. With bittersweet chocolate chips. To my taste, chewy chocolate chip cookies are tantamount to raw cookie dough. Nothing wrong with it in small doses, of course (a fingerful while mixing, licking the beaters & spoons), but it's not a food in and of itself (and don't get me started on the grotesquerie that is raw cookie dough ice cream).