Are you just picking the second option each time?
Personally I pick the Barsen'thor, yes it's a silly name, the the Jedi Consular brings in several factions under the Republic banner, while performing a number of missions that weaken the Empire, he also saves the entire Jedi order from the control of a Sith Sorceror who possesses others (Plague master). These might not be an epic adventure exactly, but they do help turn the course of the war back to the Republics favour.
HoT saved Tython from Angral. And stopped 3(?)ish super weapons that would destroy planets in one flick of a switch
then you know stopped the Emperor from devouring the galaxy