Honestly not sure as I haven't had a lot of time on Pirates. Pirates is loaded and has deep code but if I had to complain about one thing it's the lack of variety in the chapter and movie multiball modes.
Pirates has an objective based ruleset but since the game doesn't have licensed actor audio or actor video all of the modes feel very similar. All of the 125 chapter modes pretty much play the same as you are hitting character shots without any unique animations or callouts playing for each mode. Same goes for the games multiballs. The wizard modes in Pirates are all unique and have multiple stages but you have to play through the book and multiballs to get to them. I much rather prefer the far more unique modes in Dialed In and especially in The Hobbit over the modes in Pirates.
Even though many of the modes in Pirates feel similar the "pick a character" feature adds a ton of strategy to the game. Combing the character feature with the map award system really adds a lot of fun to the game and helps give each game it's own unique feel.