Neither actually. My problem is having to pick and choose which elements of the game are worth paying for. It's much nicer to just have a plain 15$ a month that I don't really have to think about.
Hmm... It's not a bad idea... But I can see a few problems cropping up. Namely, what if you later decide you don't want this padawan? What if one of you suddenly quits the game?
Did you roll a SW? If so, which AC did you pick for that? Go for the opposite ie, if you rolled a marauder, go guardian, if juggernaut, sentinel.
I've only played mara/sent so I can't comment on the guardian, and how it compares.
Honestly, it's more of a problem with that one idiot than Quesh in general. As has been said, there are plenty of Imperial NPCs on Quesh, they're just not in your questing zone
Let's see, in no particular order...
Luke Skywalker and the Shadows of Mindor
Death Star
ROTS novelisation
Republic Commando: Hard Contact
And uh... Those are the only ones I've read come to think of it. I enjoyed them all a lot anyway.