Cloud Pricing: Google vs Alibaba vs AWS vs Azure

Alibaba cloud is now in Australia and they are meant to be amazingly cheap so I wanted to see for myself. To get rough baseline comparison for all four cloud providers, I chose US as all three are located in US so easy to get data, all in US$ for Linux instance:

https://cloud.google.com/compute/pricing
https://intl.aliyun.com/product/ecs#pricing
https://azure.microsoft.com/en-au/pricing/details/virtual-machines/linux/
https://aws.amazon.com/ec2/pricing/on-demand/