Our particular use case involves a few processes that are heavily serial, while yet memory-intensive; the fastest possible processor would be a boon to us (for instance, if someone would guarantee an overclocked Xeon, we'd take it in a heartbeat for almost any price).
AWS is indeed behind the curve more often than not, but they also have some amazing hosted products. That was a bigger deal in 2014 than it is now (Kubernetes will eat the world) but it's still a reliable offering, and reliability is our most important criteria.
Agreed re: being multi-cloud in the end. It's the only responsible choice above a certain scale.
What sort of work do you have that requires the latest generation ? Or more why do you want the latest ?
Id expect aws to always be behind the ball - are they the right platform for you?
Gce is interesting, im moving half of my infra over there - but again its not really about their hardware offerings. Its more about being multi cloud/redundant