No you can't do ssh connections to (unmodified) windows machines at the moment, unfortunately.
Even if you did set up a third-party ssh server on windows, to use the ansible windows modules, you have to be using 'winrm' transport, and would likely have to go to a lot of trouble to allow suitable access rights so that you could do useful managment activities, such as installing software.
Its true you do not have to use kerberos, but you will still need to connect as a user with sufficient privileges to allow you to perform administrative tasks.
You only actually need to set up kerberos client and configure /etc/krb5.conf to point at your existing Active Directory domain controllers in order to use windows domain users.
Hope this helps,
Jon