need to buy new irons but i'm stuck between these two
both are about the same price
This. Don't make the decision without hitting them both first. It also helps tremendously to get fitted, preferably with a TrackMan so they can also fit you to the right shaft.
I have always been a calaway fanboy, but i tried the RBZ tour model and all i can say is WOW, I don't miss my stolen x-forged irons for a second!! love the speed pocket, and when you pure it, nothing compares to the sound!! especially with the 3-iron. The lofts are a little on the low side, but now I don't need to put a 2-iron/5wood in my bag (unless i want a different ball flight for a specific course on long approach shots) because the 3-iron is 19* so i can add another wedge :)