Through Star Wars the Jedi are able to excel in different areas, just like how people in reality are stronger at different things than others. If you were a Jedi, what would your first choice of studies be? You could focus mainly on lightsaber training, focus on knowledge of the force, work in the hall of records and study the history, be a teacher at the Jedi Temple, work on improving your skills with the living force, or even leave the Jedi order to join the Sith (take a peak at the Sith Holocron)?
Honestly, lightsaber combat would look the coolest, but studying the Force sounds like the area I would like to explore. Delving into the Holocrons, hearing the wisdom of a thousand generations of Knights before. And what I think would be coolest about being in the Jedi Temple on Coruscant is that as you studied you'd be surrounded by the Force, the life of each Jedi throbbing around you in the Force.
But, of course, I have the greatest of respect for librarians, and who wouldn't want to defend the largest and most thorough library in the entire galaxy?
I would definantly focus in the light saber training first. I am sure there will be a genreal study of your knowledge of the force and light saber training at the same time. Have to know one to use the other.