If you are looking for the absolute best air cooler for your gaming PC, then the obvious choice has always been the Noctua NH-D15. But now with Noctua's NH-D15 G2, they're changing the game again but their goal of once again having the best air cooler for Intel and AMD systems now has some serious competition with Thermalright and DeepCool. So with a sky-high price and amazing temperatures, can the D15 G2 really become the best of the best again?