Intel have a great partner program - I'm a small OEM (as one arm to the company), less than 100 units a month - but, still a nice number... Intel give me advanced warranties, presales support, partner centre, certain privileged information including roadmaps and samples... I couldn't imagine better.

AMD - I'm struggling to get them to return a call despite numerous chase messages for over 3 months now.

I want to sell AMD due to Ryzen demand but literally can't find anyone... even met an AMD rep at an industry event and he gave me his business card... non stop voicemail and just has never got back to me.

Again, I know I'm not huge - but, it's still over 1k units a year and I'm talking to a brick wall. When I started ~15 years ago and literally doing 1-2 a week, Intel were VERY supportive.