Between Intel manipulating the server OEMs, and relatively poor lights out management, who could guess?
With Intel, I get advanced warranties, presales support, next day parts, details marketing and product information alongside access to privileged information and roadmaps.
With AMD, I was waiting the best part of 3 months for a call back, and their "partner" site which is open to the world is severely out of date and doesn't even have all products listed.
Intel is frictionless when it comes to doing business, AMD put up roadblocks.