The G1 Gaming 970 overclocks the best out of the 970 variants, but it has a higher price ($370) than the Asus Strix ($350)
And G.Skill 1600 MHz 16GB (8GB x2) is for $140 at Newegg right now.
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231568