So hard to answer since I live in San Diego, where there is a huge frozen yogurt culture. We have a self-serve frozen yogurt shop on every corner it seems. Each one has 10-15 flavors, that change daily. There are also countless toppings, ranging from fruit, cookies, hot fudge, etc. I normally get a the tart and a berry flavored yogurt, and put a ton of raspberries and strawberries on top. Pinkberry does not do well here, we like the self-serve, locally-owned ones! Here's fro you, SoCal style:
http://photos-g.ak.fbcdn.net/photos-ak-snc1/v370/2/10/1307552499/n1307552499_30185153_470.jpg (broken link)