I have owned both skis. The reno jibs are stiffer, and more of a competition level park ski (or at least the older ones were). The moments are stiff fast, and a great jump ski. They are super light and mega poppy. I skied mine for a season and got one edge crack and a small bit of delam. I would buy this ski again for sure.
The ON3P's are also an amazing ski. The ski is a bit softer, but i found it to be more stable. It is still by no means a noodle, and is a very solid ski for park, and a bit of all mountain. I have taken this ski off everthing from big cliffs, to bc jumps, to park jumps, and the thing performs. It The rocker makes it butterable, but the stiff flex profile keeps it rigid and solid on those hard landings. These also have the thickest edges i have ever seen.
As for durability, the moments win, as i broke the blue steeles. As for overall skiing experience, the ON3P's win. Because i feel like i can do anything i want to on these skis. You really cannot go wrong with either ski though.
And Usain Bolt is running down the side of the field, he's got the ball, he's still running, WHERE THE F**K IS HE GOING?!?! USAIN BOLT HAS LEFT THE BUILDING...WITH THE BALL.-BIG-DUMP