I'd say my favorite was Mission Space, although I only tried the Green side, need to try the Orange side. Soarin' was cool, but feeling like I'm sitting on a bench with my feet dangling and feeling like I was flying did get me pretty nervous at first.
Now, the worst attraction is Maelstrom. Not only is it over in 30 seconds, but there's no theme to the ride. I didn't learn anything from it and the movie afterwards was even worse. Overall, they should have tried to do something different with this attraction.