I would think the RX 480's are a raging success. Don't know where you get that they run hot. JayTwoCents proved that the 480 can run cool and low power if you give it a better cooler.
He was able to make it pull around 100W.
Most enthusiasts are recommending RX 480 but for whatever reason most people actually buy a 1060. I consider the 3GB 1060 to be wrong on many levels. The 1060 6GB has value if and only if you spend $250 and no more. And remember Nvidia milked their 1060 for $300 for the Founders Edition.
Remember Intel CPUs can only be overclocked if they're the K parts. That limits overclocking to 6600K/6700K/7700K. Where we know AMD plans to not limit Zen's overclockability. Zen will even auto overclock depending on your cooler. Though it's really just Turbo mode, with a tweak.
An i5 6600 is 3.90 GHz and won't go higher and costs $220. The quad core Zen will be cheaper with HT and will have manual overclocking.