According to the link the FX 8350 beats the 4670k i various tests and i'm not saying it's the best choice. It's just that people dismiss it way too fast. It's certainly a comparable cpu imo.
The problem is that to get those results, they're using tests tailored to more threads, and not showing the power consumption difference, which is generally high enough to matter, even with cheap U.S. power rates.
Case in point: 7-zip. Compressing and decompressing with 7-zip rarely uses more than 2 threads, unless you use DEFLATE or BZIP2. And when decompressing, it's dependent upon the compression settings used, so similar limits apply.
With a wider variety of tests, including those not using >4 threads, the FX-8350 would not look so good, while the Xeon and i7 still will. It's dismissed quickly because, as a whole package, it lacks too much in comparison to Intels at $75+ more.