For gaming, unless you've got CrossfireX or SLI going, you'll be GPU bottlenecked most likely anyway. What I'm trying to say is that absent SLI/CrossfireX being a factor there is no REAL compelling reason, for a gamer, to go Intel rather than AMD.
Now if you're slip-streaming (broadcasting live gameplay over the web) then you might actually benefit from the AMDs extra cores though by how much will greatly depend on the load the CPU is currently under while gaming.
If you're doing Office/Productivity work, Multimedia (Video/Audio) Encoding/Decoding, 3D Rendering (Ray Tracing) and other heavy computational loads then Intel is most definitely the way to go.
Why? Because Intel CPUs ARE faster than AMD CPUs on a per core basis (much faster tbh).