The Joker
The Joker's combat methodology defies conventional assessment. He possesses no superhuman abilities, yet has repeatedly engaged peak human combatants including Batman, surviving encounters that would destroy lesser opponents. His arsenal comprises improvised weaponry, chemical agents of his own devising, and an absolute disregard for personal safety that renders him unpredictable.
However, his physical capabilities remain strictly within human parameters. Against opponents who cannot be psychologically manipulated or who possess genuine superhuman abilities, his effectiveness diminishes considerably.
Yoda
Grand Master Yoda represents the pinnacle of Jedi martial achievement. His mastery of Form IV (Ataru) allows him to overcome his diminutive stature through acrobatic precision and Force-enhanced speed. During the Clone Wars, he demonstrated the capacity to deflect Force lightning, engage multiple opponents simultaneously, and match Darth Sidious in direct combat.
The Force provides telekinetic abilities, precognition, and physical enhancement that place Yoda's combat capabilities at what researchers term "building-level" destructive potential. His 800 years of active combat training represent an insurmountable experience advantage.