I disagree with the list, personally. For me, these are the top 4:
4) Thunder Mountain - I debated putting this one as 3, actually. The theming is top notch and it delivers a very different experience depending on the time of day you ride it. It's classic and timeless and people of all ages enjoy this one.
3) Space Mountain - It's a true classic. Enhancements made to the queue have only helped the ride, in my opinion. I love standing in line right before you board and seeing the comets, craters, and stars in the sky. If you look closely enough, you can even see the glow of the cars as they zoom past on the tracks. Roller coasters in the dark have their own special thrill and this one delivers.
2) Rock n Roller Coaster - I love how smooth this roller coaster is and the music really adds to the experience. I wish that the queue were done up a bit better, but for a thrill ride, this one is certainly top 4.
1) Tower of Terror - From the moment you see the Hollywood Tower Hotel, you can start to feel the excitement. As you enter the gates, are greeted by the bellhops, see the overgrown gardens, and hear the haunting music, you are fully immersed in the story. It's a thrill long before you ever step foot on that elevator. The movie played in the library really helps set the scene for what you are about the experience. The boiler room helps to add to the anticipation. When you board the elevator, rather than just going up and dropping, they continue to tell the story. The five lost souls beckon you to join them and you know that there's no way off for you. You reach close to the top, the doors open, you move forward to the scenes of haunting images from The Twilight Zone, and you know what is coming. Except you don't, because you have no idea if you are going to drop or go shooting up. You have no idea how long it will last. You are just along for the ride... and some lovely views of the park.