Yeah I agree with the above comments, and I would like to add that on Ripsaw it's really hard for tall people to get in the ride vehicle. I'm 5'11" with long legs and I couldn't fit into the front seat at all. I could only lower myself into the other seats with difficulty.
Splash Mountain is easy to get into, like getting into a car. Jurassic Park is like sitting down in a school bus.
Jurassic Park is usually the driest, but if you sit in the front seat you "may" get a blast of water in the face. The kids watching from the splashdown viewing area get a lot wetter.
All of these rides are great. If you really want to get wet, go on Bilge Rat Barges. The fun thing about this ride is to watch the other people on your barge - there's always someone who didn't realize how wet they're going to get, all their nice clothes, shoes, etc.