Hi Peeps,
I finally got a chance to ride the new Ozone Reo yesterday afternoon in 20-25 knots on a Shinnster strapless wave sled (my term). I have also been flying North Neo's for a couple of years.
The answer to the question of which is better is going to be different for everyone, it greatly depends on what you weigh, the board you ride, the wind direction and also your riding style.
In short, without writing a tome about intricacies of each kite that few riders will be able to discern in any case, the North Neo is going to suit heavier riders due to it's low end power. The Reo is going to appeal to lighter riders due to its top end and lesser power. In my opinion, Neo is perfect for riders over 85kg, Reo better suits riders 80kgs or less and riders between 75 and 85 could go either way.
The steering and responsiveness and also drift are similar in both kites when set up similarly. The North has slightly greater bar pressure than the Reo which also works well as most "bigger" blokes are a little stronger (generalizing, sorry

).
Neo's, having greater power also makes them a good freeride and boosting kite. Both bars are great and function well. The Ozone bar did p1ss me off a bit when trying to get the line keepers over the wound up bar. I used some pretty colourful language getting this over the bar ends, that aside, it was a nice bar.
Both kites are sensational for wave riding and it will be personal preference only for specific characteristics that make the choice easy .... but you have to decide
DM