Weight becomes a big factor in components for a LV build, and recoil, too. While limited, we do have access to a few really good stocks that save weight and allow things such as tuners in LV. Of course I believe tuners are the best thing since sliced bread but I'd honestly say so if I didn't too.
I'm a big fan of the Grendel based wildcats and in my own experience, they can shoot with absolutely anything out there. But, the throne will never likely be removed from the ppc as king, in my lifetime, if ever. Again, I'd say mostly a coin toss here too. Not enough difference in the two to truly claim superiority either way, unless you factor in that 99.3% of people in that game all use the same cartridge...a ppc. That's where UBR shines because, it puts reasonable numbers of different cartridges head to head. The results will surprise some and others have, been there and done both enough to NOT be surprised to see something else close win, when all else is equal.