The Agent seems nice, but since my rep char is a smuggler, I figured I'd go for something different, however, if the agent story is far superior to the others, I'll go for it.
The inquisitor seems like it should be great too, except all the quests have been kinda meh until lvl 15 at least.
Annoyingly enough it seems like I can't buy more slots (unless I subscribe) which makes this decision far more "final" than I thought. Now I'll be stuck with whatever I pick until I'm done with the story (and once I'm done with the story deleting that char is going to be rather painful).
Checking out seems not to do much.