Coleman Trebor vs Grandmaster Zym

You know the drill

Going with Zym seeing as he managed to get a force push in before going down, decent fight tho I think it would play out similar to Ulic vs Exar and last for ages

They end up killing each other

Trebor due to superiority to Dooku.

Lol, Trebor stomps in all honesty. Zym has no feats, Trebor defeated "batallions" of battle droids, and defeating like 100 of these droids is pretty high; quality Knights have fallen surrounded by ~40-50 of them due to sheer numbers.

Okay, it's not much, but it puts Trebor clearly above an average Jedi Knight/Jedi Master/Sith Lord. Zym has nothing to put him above an average Jedi Master besides his status as the Grandmaster, but even then, "generic superior Jedi Master" is not much compared to clear combat aptitude above normal Master/Lord.