I will have to check that site out myself. Might build something in the middle of next year.
My last two CPUs (previous and current) were Intel. Never had a problem with them and always reliable no matter what I threw at them. I am not an overclocker etc though. I will have to investigate more about the current state of affairs for AMD. My last one worked very well but I did have to throttle it down somewhat for things like rendering because it got very hot and, of course, meaning the fans were blasting away like a jet liner. In the end, whatever gets the job done in the fastest and most efficient way. Like everyone else, all things being equal I also look at cost/performance ratios and such.
However, I am also of the mind that if something isnt broken, dont fix it. If the difference in price between matching Intel/AMD systems is say $2500 vs $3000, that $500 is not an extreme amount of money considering what you are buying and how much you will use it. So might also be best to stay with what you are most comfortable with. As before and most important, depending on what you want to do now and later.
On the other hand, that $500 could be put towards a pretty good NAS, drives not included. Now that I have had my consumer level Synology for about two years I wish I had gotten the next grade up.