Yuilin has information on this on the Star Wars Dessert Party thread. She has pictures that show you the best places to take without going to the dessert party. We followed her advice and had great spots for the show. We arrived 45 minutes before the show and were able to sneak in to the best section, but it was quite full already. I would suggest getting food or treats (we got a cupcake and a carrot cake cookie) and arriving an hour early to ensure you're getting the best spots.