If you wanna save money, go with the 1060. My EVGA 1070 SC (old one) overclocked with Afterburner runs every game I throw at it @1440p 144mhz Gsync with atleast 60fps. CPU is i5 4690k@4.5ghz, 16gb Trident X 2400 memory, 850 evo ssd, 650w ps, msi z97 gaming 5.
For instance BF1 I've had to mess with a ton, but finally have it Ultra locked at 70 max fps and it runs smooth,Doom usually is around 122fps, Andromeda is 60+ etc.
I went with the Dell s2716DG. It ranks up with the best, but needs calibration. You can find them for around +-450 now. Prices are falling for GPUs though, and you can find some 1070s for great prices.