I'm actually going to back Caedus.
Dooku's form is ill-suited to deal with a fighter as relentless/fast as Caedus is. He was physically getting taxed when dealing with Anakin in ROTS, and Caedus is more skilled and powerful than Anakin was. Maul is better prepared to deal with Caedus as we've seen offensively high tier duelists at least hold their own. He can also dispatch one of them immediately with either telekinesis, illusions, or possibly even TP.
Of course probably only 6/10 or an even split at best