I can't seem to find a good list of which devices support Amazon Instant in 1080p. My Apple TV 3 is my main streamer for season passes, Netflix, MLB.tv, and HBO Go. I prefer Netflix to Prime but I've had it for free two day shipping since before the videos were added. Essentially I only use it for content like Hannibal that isn't available from Netflix.
I have a Roku 2XD that doesn't cooperate with my Onkyo AVR. Something with that combination causes a weird purplish tint with Netflix for me so it was replaced with an Apple TV. It sounds like Roku doesn't get the 1080p streams anyways.
I also have a PS4 and Xbox One hooked up to my main TV. Are either of these devices known for better Amazon Instant performance? Are either of them confirmed for Amazon 1080p streams? Since Amazon isn't used as often I'm more worried about 1080p and 5.1 sound than UI. We have a great, long thread on the best Netflix streaming devices but there seems to be much less information out there about Amazon.