Darth Caedus vs. Yoda
Combatants: Darth Caedus, prior to his injuries vs. RotS Yoda.
Setting: Aboard the Anakin Solo, providing many environmental factors to consider.
Rules: N/A.
Since the age of Katarn is apparently over, let's substitute Caedus in to temporarily take over while I go back to the work shops to relentless prove Katarn is the single most powerful Force user ever to have existed. Currently, my research has shown that his midichlorian count is above even Nebar Foxis and he has the Kaiburr Crystal. Given that he developed most, if not all of the dark side Force powers, and was the original Sith Lord, I'd say Kyle is well on his way back to his rightful position as #1.
Ignoring that inane drivel, FIGHT!