Yeah, neither the PVA JM or the ARC Xylo look appealing to me. The James Madison looks a LOT better than the Xylo, which looks like it's trying too hard to be the next Storm Trooper sci-fi wonder rifle than a comfortable, fieldable chassis, but maybe the actual end product will be more aesthetically pleasing.
The JM looks better, but I wonder how well the CF will hold up to actual hard use, getting dropped, banged around, etc. And I HAVE to believe the photos are a prototype only. No way I'd want a chassis with all those sharp edges and 90* corners everywhere to snag on stuff!
I get it, a chassis should be about fit and function first and look good last, but honestly, I'd take a KRG all week long and twice on Sunday at this point. Time will tell!