NH-D14 is the better cooler, and very quiet.
Another good option is Phanteks TC14PE. It's slightly cooler than the NH-D14 but also a little bit louder. Comes in less ugly colors and is a little less expensive if you shop around. Caveat: Intel mounting hardware is good, but there's a manufacturing glitch with the AMD mounting hardware and you *MAY* need to contact them for replacement parts.