While I'm not sure if I'll go with Intel or AMD for my next system when I get ready to build, I am rooting for AMD. It really depends on how well Linux is supported.
I've got to say, "Not well".
I built a "test mule" rig, around an AMD A8-9600 APU (Bristol Ridge). In an Asus Prime B350-E micro-ATX mobo. Which allows for overclocking of the BR APUs.
I installed Windows 10, works like a charm, everything works, great!
I installed Linux Mint 18.2 Cinnamon. No HDMI audio. No matter what I do.
I upgraded to Mint 18.3. Still no HDMI audio. Installed newest kernel, installed "daily ALSA" driver DKMS too, still no HDMI audio. Strangely, too, the analog audio doesn't show up in Linux at all either.
Booted Mint 18.3 Mate, no audio on the LiveUSB either.
Basically, it's screwed. No workable Linux audio for me. I have a monitor with speakers, I don't want to have to plug in a separate set of analog speakers every time I want to use a Linux PC.
The wierd part is, it's detected perfectly fine, and ACTS like it's actually working. Just ... no sound. Again, Windows 10 works fine. So it's gotta be Linux.
Unsure if it's the board, or the APU itself, that's incompatible with Linux.
And if Linux doesn't support BR (I can't install either the 15.2 Cats, or the AMD GPUPRO driver on Mint 18.3 either), then how is it going to support RR? I suspect that it wont.
Which is sad, these would make great Linux boxes, with an AMD APU, some DDR4, a mobo, and an SSD. Certainly cost- and performance-competitive with Intel's G4560.
Edit: This is all with the default open-source drivers in Mint 18.2 and 18.3. I was not able to get any of the proprietary drivers to install.
I did try an ATI DVI-to-HDMI adapter, off of the DVI port, and that worked in Windows 10, but not in Linux, for sound. It will do 4K though.