The Paris version is the most impressive to look at, especially at night. I love the Jules Verne theme and also the inside theming and on-ride music. However, I feel the launch is lackluster and the coaster as a whole is rough, the trains are bulky and uncomfortable.
I prefer Florida's version. Though not as impressive as Paris, it is such a fun little ride, fast and really packs a punch, I spent most of my ride ducking thinking I was going to hit my head =] I also like the original sci-fi spacey theme that Florida's version has, it feels much more 'Disney' to me.