Um, how is this not a no brainer? Bastila has displayed herself to be capable of ripping through the force shields of three force user simultaneously and sent them flying backwards, not to mention she used force stasis against Revan's companions as well. Bastila take this. Cin Drallig doesn't have much going for him.
Bastila then proceeds to be destroyed by a Vader comparable opponent three times while amped, when he was holding back, and after he fought through two armies to get to her. She lost to Revan just as bad as Drallig lost to Vader, except Vader was actually trying to kill Drallig. I don't think they're shown to be that far apart based on that logic.