Darth Traya vs. Darth Caedus

Duel takes place in Ziro the. Hutt's cell

Caedus solidly

Jacen destroys

Yeah, it's kind of hard to imagine scenarios where Traya can win.

Caedus as of Dark Empire might lose. Maybe.

Darth Traya trick him into thinking she is his ally and stab him in the back. Incapacitate him, and drain his power !
And start a campaign to kick Darth Krayt ass !