I gave my vote to JPRA. Even when half the effects are down-- which they usually are, mind you-- it's a great experience, especially if you're a geek for the series like myself. And the feeling you get coming out of that drop is incredible. It's very immersive and just has a sense of magic about it.
It was closely followed by Popeye's. The Barges have the best theming I've ever seen on a raft ride, from queue to unloading, but I would not mind getting a liiiittle less wet on it sometimes. And, if this even counts as part of the ride, a good hour of any visit I make to IOA is spent having James Bond moments as I attack innocent guests from those handy water guns at the top of Me Ship, the Olive. Best non-ride experience in that park to me.