I'm not sure which to buy. They are all in the same price range. I run an AMD processor (switching to intel eventually) and a Nvidia GTX770 GPU.
Choice 1:
2400 mhz and Cas Latency 10:
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231589
Choice 2:
1866 mhz and Cas Latency 8...