Discounts included, my previous statements about cost still stand. That said, I don't think the cost differences should incentivize anyone to move unless they're operating at a scale that would make a substantial difference. Disk IO in AWS can be prohibitively expensive, for example. Any business that relied heavily on that would benefit by looking at local SSD on GCP.
There are lots of little things to like about GCP that are superior to AWS. Network IO, some of the bigdata products. Not having to deal with IAM. In the end it would be some combination of those things that should drive the decision. Basic enterprise IT shops moving to "cloud" should choose AWS 90% of the time.
Anyone starting from scratch on kubernetes or considering shifting all of their infrastructure to it should absolutely choose GKE. Anyone currently in EKS or AKS should sign up for GCP today and evaluate the differences to see what they're missing.
