Rock n Roller Coaster, BORN TO ROCK BABY!!!!..........Just something about being shot out at 60 mph while having "Dude Looks Like a Lady" blasting in your ears.
Haunted Mansion. It's family tradition to ride it MANY times over the course of our vacation. There is always something new to see, even after all these years!
Haunted Mansion! It really is the perfect Disney attraction, imho. Totally original, immersive, great story. And it has remained my favorite for the past 20 years.
I'm going to say Pirates of the Caribbean. But not at Walt Disney World.
My first trip to Disneyland proved to me that a huge handful of rides at Disneyland are superior to Walt Disney World versions. So, my vote goes to Disneyland's Pirates of the Caribbean. Great scenery, storytelling, length, theming and overall a spectacular ride.