Yesterday on the Structure blog, I ripped Gartner’s Magic Quadrant for Cloud Infrastructure as a Service and Web Hosting for not including Amazon Web Services among the leaders. Last night, Gartner analyst Lydia Leong, co-author of the report, responded and defended her rankings. I think she makes some fair points about what Gartner clients want and why AWS isn’t necessarily enterprise-friendly, but I still think the report is misleading. If we’re ranking hosting providers that have cloud offerings, then AWS shouldn’t be included at all. But when ranking IaaS, AWS has to be at the top. It’s the reason all other providers have cloud offerings at all, and its pricing and self-service models — which continue to evolve — have revolutionized our conceptions of IT, even if all users haven’t yet caught up.