I have a great deal of love for Snake Mountain(got it with my First Communion money) and Point Dread/Talon Fighter(I got it for Christmas), but I went with Castle Grayskull. Besides being the coolest looking castle & playset ever imo, it was also a surprise. My parents had to cancel our vacation one summer since I got the flu. Rather than being disappointed that I ruined their plans, they bought me Castle Grayskull to cheer me up. Good times!