Yahbe :
Ok so if yall had to pick between the Intel Core i5-4570 and the AMD FX-8320 the FX would be the choice?
Honestly if you never plan on playing anything more intense than the games you listed (World of Warcraft, Elder Scrolls Online, Guild Wars 2) I wouldn't even go that far on the parts. Those games are not triple AAA titles an they also don't require much more than basic entry level gaming components to max them out. Like I stated before a simple APU with a low-end entry-level GPU could run all those games on High-Ultra no problem. For example....
I have an A-10 6700 APU with a GTX 750ti Superclocked < both of these are laughable at best when it comes to games like Battlefield 4 an such. Though when I load up games like World of Warcraft (I have but played it with this setup just to see the results) it laughs at it even on highest settings. So I'd say you could go even lower on your budget an be just fine.
When looking to build your own computer always be patient. Don't rush out there an buy the first thing that catches your eye just because someone says its the best. Now given that your games are not that intense you shouldn't have much of a problem finding a very cheap setup that will play what you want on highest settings. Good Luck!!!
www.pcpartpicker.com
www.newegg.com
www.amazon.com
There are a few sites to get you on your way
Cheers!