Pat Parelli went up against Craig Cameron and Josh Lyons in the "In A Whisper" challenge, which was essentially the same thing as RTTH. Josh won, as he should, I thought he was by far the best of the three.
Chris Cox and Clinton have both won twice if I'm not mistaken. I'm betting Clinton will win this one, even though he was beat out by Chris in the 2007 event. He's the best at getting a horse "broke", and I don't mean the "oh look he'll jump a cow patterned barrel" broke.
I've spent most of my life riding horses. The rest I've just wasted.