I am a new demonstrator as well and it seems right now that Fishy Friends seems to be the most popular with my customers. Personally I have tons of favorites but will probably be purchasing Holiday Happiness because you can not only make Christmas but also Birthday cards with it. There is a really cute one using green galore and brillian blue on the Stampin Up Website. Keep in mind the most popular cards people want are birthday, christmas, and thank you. Good luck