6. IllumiNations: Reflections of Earth (World Showcase, Epcot)
Unless you're there on one of the busiest days of the year—like, say, the International Food & Wine Festival that takes place in the fall—then you stand a really good chance of nabbing a perfectly fine viewing spot for the "IllumiNations: Reflections of Earth" nighttime spectacular.
In fact, getting a FastPass for this show is not necessarily a guarantee that your view will be any better than those of everyone else around the World Showcase Lagoon. We ourselves have had multiple experiences of being placed in a crowded roped-off area with other FastPass users, only to have our view obscured by a tree or something else. Not worth it.