I am building a gaming PC. I will not be able to afford an Intel, as I already have an AMD motherboard and cannot afford to get an Intel compatible one. I also have a low budget for the CPU. I cannot spend over ~$120.
Specs for the rest of the build:
Mobo: MSI 970A-G46 AM3+ AMD 970
RAM: 8 gigs ddr3
HDD: 400 GB Caviar blue
Video card: Radeon HD 7770
Best choice between the two, by far. Don't go too heavy on the O/Cing untill you get a better cooler, tho. The stock cooler wasn't designed to cool much beyond the stock speed. Even if you don't O/C it will be a great gamer.