I have no idea which one is better. I bought Quilt Pro version 4 and upgraded it to the current version 5 when it first came out. I have been very happy with it. It does everything I want it to do and when it doesn't--reviewing the manual usually helps--LOL! They also have a support forum that handles those very infrequent times when reading the manual doesn't help.
I have much more trouble figuring out my embroidery software than I ever had with Quilt Pro. I can build, rebuild, and transfer entire computer networks but that darned embroidery stops me in my tracks!