Sonic's Campfire Blast was really good except the marshmallows. Skip those and the rest is worth it. You're right, the Mini Blizzard is great! The Snack Size McFlurry is about the same size, half the price, but also probably half the ingredients as it's light on the added goodies, and mostly ice cream. Calorie wise it's about the same. For value I'd suggest the Snack Size McFlurry. For best bang for your buck, I'd suggest the Mini Blizzard. But for a great Summer flavor and since it's only for a limited time, get the Campfire Blast at Sonic, just toss the chocolate marshmallows.