Mine was the cookie crumble mocha when I could have gluten. Now I'm not sure what I'd choose.
Somewhat off topic but you mentioned gluten free and I was wondering if you get sick/have a reaction to Starbucks coffee? I'm wondering if it's just me.
Starbucks had a promotion last July or August for a happy hour with half price Frappacinos. I live close to a Starbucks, so I went often, and I tried several flavors. I was trying to recreate my favorite hot drink, a skinny vanilla latte. I settled on a lite coffee frappe with sugar free vanilla syrup, no whip.
Come to think of it, I haven't had one since! I really do prefer hot drinks.