Star Wars but it helps that I'm a huge fan of the original trilogy and didn't grow up watching the original Batman series. The original Batman show has always come across as a bit "old" to me and a less impressive version of what Batman became in future movies. If I grew up with the original Batman series I'm sure I would think completely different. It's great to see how much code attention Batman 66 has received, owners of the game deserve it.
From a gameplay and rules perspective I prefer Star Wars premium / LE. There are so many ways to approach the game as you get to not only select what character and abilities to use but also what planet and its modes / wizard mode you want to go after. As far as theme integration goes Star Wars is in the top 10 in my opinion thanks to licensed video, actor audio + actor video, and licensed music assets being in the game. The game also offers a very deep and rich objective based ruleset that thanks to the 4 mode quadrants can leave a player feeling like they accomplished something big by completing 1 of the 4 areas.