Cin does have a chance, Anakin killed him with one hand, he never fought the fight with one hand!
Plus, cin was unprepared, if he knew anakin was a sith he would fight him to the death.
If anakin wasnt suppose to live and bring balance to the force, cin would win cuz he is a master swordsman, with greater experince, and wisdom. Anakin is just another knight who has some skillz.(<--- we talking about no prophecy here)