I thought the same thing while rewatching Princess Bride. I Thought to Myself, "Why Do I Want the Protagonists to win again?" Because, basically you have a Spaniard bent on vengeance, a self-absorbed fake-Princess, a slow minded giant, and a murderous pirate as the main nice characters. Sure, the antagonists are slightly more evil, but the characters aren't very empathetic (besides Andre the giant's character). Crazy times.