I have to agree with Ami T about PDBS. I prefer their daily specials over their plain regular flavors. They are dry and bland. I have had probably 10 or more flavors over the years and in general the frosting/filling makes the cupcake. My recommended flavors are: Apple Cinnamon, Creme Caramel, Peanut Butter Cup, Salted Caramel, Tuxedo. Their cream cheese frosting is absolutely delicious. I have not tried the gluten free option, but I will do so next time. I don't know if it can compare with the moistness of Pink Chocolate's GF cupcakes though.
This is a counter-service place so you have to wait till you get to the parking lot to scarf down a cupcake shamefully in your car.