What power for Force Choke, Harm or Unleash? Unleash has the incapacitating (Ensnare) and damage over time (Burn) ability, but this is Force Lightning. While Harm has no incapacitating or damage over time / maintaining abilities.
With the current Force powers there is no way to recreate the scene in The Empire Strikes Back , Darth Vader uses Force Choke to kill Admiral Ozzel. At the time Vader is in his meditation chamber while Ozzel and Needa are presumably on the bridge of the Executor.