In my play tests I have found that an ISD and a Vic has potential. If you can get the Vic nose to nose with the starhawk, it can’t get around the medium base and is stuck. Then either the ISD or Onager test bed can fire gleefully at the starhawk. Onager and interdictor work well as well. The interdictor can repair a lot of the damage the star hawk inflicts while it is nose to nose with the starhawk.