My Strike Zone polished = Red Zone. Goes long and flips HARD.
Anyhow, you can't go wrong with a Red Zone based on everyone's reviews thus far. But in my opinion the UI was a weaker ball than the Strike Zone, even though the UI had great success, the Strike Zone by many was overlooked.
So I'll put my vote in for a Strike Zone, both of mine just flat out hit hard! And don't forget you can polish it for more skid-flip.