re greasepaint: not on Koloth or Korax. They were as caucasian as Kirk.
Something like that. Think MiG-15 v. F86.Traditional sources, therefore non-cannon, had always made the Federation Heavy Cruiser much tougher in shield strength and ability to absorb damage with stronger but fewer weapons. The Klingon Battlecruiser was more nimble, more maneuverable if not flat out faster, and many weapons but of a weaker strength. So it's a close matchup but the Klingon would really need to use his maneuverability to get the shots in to wear the Fed down without the Fed smashing him with a full salvo.