I played to about 16 with IA in the Thanksgiving beta and 13 with SW. I love the Agent class and the story was unique, but the start of it on Hutta was a bit slow and didn't enthrall me a ton. The second half of Hutta and beyond after you really start the manipulation of targets was amazing.
The SW was very exciting from the start, though barely got off the start planet for them so don't know if it keeps up at that high level. Even though the story started out strong, I think the Agent starting around level 7-8 was more interesting and enjoyable of the two.
