Intel: It runs cooler Compatible/Doesn't bottleneck with more graphics cards A lot more people prefer it. Easier to overclock. More stable when overclocked Don't need a 500 dollar cooler to make it less hot than average.
a hyper 212 evo can do the job on amd and its like 20$ an fx 6300 is as much as an i3 and it can run as fast as an i5 when overclocked to 4ghz (which is possible with a hyper 212 evo)