Career 3 ("Perfect Paragon") is going to be my cautious/highly-elaborated career. I'll take every assignment, search every bit of space that seems to have a reasonable likelihood of yielding materiel to help the cause.
Career 1 ("Hasty Renegade") is going to be my "How much can I salvage?" career. I'll go straight for the jugular and continue her tradition of cutting corners in the interest of getting results.
Career 2 ("Pragmatic Paragon") is going to be the career I try to play for verisimilitude. I'll attempt to react quickly, in accordance with my ideas of what I myself would do, in the interest of trying to find my "real" relationship to the character, outside of the kind of analysis I want to try to do on 1 and 3, and more importantly among the careers.
That said, it probably makes sense to play out career 2 before I do the more involved 3 and 1. Right now, I'm in Perfect Paragon, cautiously exploring the galaxy map and considering the Cerberus outpost Admiral Hackett has advised my PC to deal with. I'll probably see if I can take care of that, then switch to Pragmatic Paragon.
I'm still on Narrative combat.