SS troops shot some of our pow's but islamofascists cut them to pieces alive. No matter how you slice it islamos are the most inhuman enemy to US troops. But to Jews you cant really top the Nazi for an enemy since they already used sarin on them and starved others to death.
The vast majority of our POWs were treated well by Germany. It was a very different story for US soldiers captured by Japan.
Also, the SS had no warrors code, but the German Army did.