Choosing right CNC

Hi All,
I am wondering if any of you can share your expert opinion on changing CNC machine. In the company we got 5 CNC in a row feed by FANUC robot. one of the machine was different than rest and need time to chnage turning tools. Company decided to change it to either the same model LUCK BEI II from Nakamura or a NZX1500 from DMG Mori. Now what we are looking for is to continue the production simply implementing the existing code and networking with fanuc robot. also prefering NZX1500 as its size and price. As I am not a CNC guy I need your expert opinion which one should I choose and why?/ thanks.