My comment is only about the panther. SO why is my comment being fragged into this. I ain't comparing JP4 vs Jackson. Some one said Panther f's every thing that costs less than it. But not the Jackson.
I think it's because most games don't take place in a vacuum so you are able to build units other than the ones discussed in an online forum thread.
In this case it's that the JP4 supplements the KT very well as it can take on allied TDs very well and at good price point.