The Noctua NH-D14 will be the best very closely followed by the Thermal right and the Zalmans not far behind (they are all very good) if theres not much in the price the cheapest will be the best value, you could also consider the Tuniq Tower 120 Extreme it would roughly slot into the middle of them. The H50 will be the most expensive and the poorest cooling performance but will be the quietest.