As the others have said, go for PC. Console doesn't have much to offer outside of convenience and certain online platforms that have a good social following. Granted, those two things are huge for console. But if you don't have a PC at all, go PC. You'll find yourself using it for more than just games. As as far as games go, you get Steam (and it's never ending sales), access to genres that just don't work on console (such as RTS), actually good modding instead of castrated crap like what happened on console Skyrim, etc.
Also, a few years ago AMD came back swinging and the market has been really good for consumers because of it. I have a new AMD rig and I have been very happy with it.