running windows Container in Kubernetes over AWS cloud
KOPS is really good if the default architecture satisfies your requirements, if you need to make some changes it will give you some trouble. For example I needed to add a GPU Node, I was able to add it, but unable to make this process automatic, being unable to create an auto scaling group.
Kops has a lot of pros, like creating all the cluster in a transparent way.
Do you really need a windows node?
If yes, try to launch a cluster using kube-adm, then joining the windows node to this cluster.
Kops will take some time to add this windows nodes feature.