I've been trying to find this out for the past few days myself, It's been hard to tell due to nobody testing with the same methodologies. Out of the box, top clocked are the Zotac amp extreme than the Gigabyte Aorus. As for the best OC'er, well it's kinda stuck due to Nvidia locking things down and obviously taking the best-binned chips for themselves (unless this has changed and I'm just unaware). Asus supposedly has one of the best VRMs, but it doesn't matter much unless maybe using LN2, but maybe it'll last longer overall with an OC on it. The KINGPIN card was announced early January, but still, no launch yet.