I'm hesitant to actually vote on this one since it's not a simple answer for me.
RotR definitely has proven itself to be in the top three attractions for me in the park (PotC and HM round out that list).
In many ways, it is the superior attraction inside of DL Park.
The theming, multiple ride experiences, and exciting adventure driven story build on the best ideas and experiences of what has come before. I was simply blown away by it when I first experienced it last year. As a lifelong Star Wars fan, I can also say that walking into a Star Wars adventure like that is something I've dreamt about for decades, and it hits all the right notes.
However....
Pirates will always be my sentimental favorite. No trip to the park is complete without sailing through the Blue Bayou, the caves and the sacking of the town. That attraction wet my apatite for adventure & excitement as a kid, and will always remind me to live life to the fullest. Can't beat that feeling.