If you get a chance, do the TOT at Disney World! I'm sooooo glad my first experience with TOT was at Disney World, because it is so much better IMO. Taller, scarier looking building, "random" drops, and the best part of all, the elevator moves forward!!! Definately adds to the Twilight zone aspect because you're not expecting the elevator to go up, forward, then drop!
I think because of space constraints, the DL version just wasn't able to add all of the extras. But still a great ride none the less!