Hey,
I'll chime in. I own The Shadow, and have since last June. So, a year and a half? I bought a WhiteWater in February, and sold it a few months later. From this thread, it seems to me people who like one aren't overly partial to the other. One person said he loved when the ball hit the glass coming down the left ramp in WhiteWater. I hated that. I still cringe when I think of it. It's all what you like, I guess. I prefer The Shadow, but am more of a stop and go kind of guy. Matter of opinion, but now everyone has mine.
Luke