I never really understood what was so great about Fausto, since he had pretty much no bearing on the main plot whatsoever and then come book three we're expected to give a crap aobut him. And Andrew Simpson Smith just bothers me for reasons unknown.

I do like Dr. Cable though~
...Y'knooooow I actually find most of the characters to be very likeable and very hateable at the same time (Tally probably being the best example for me), so it's kinda hard for me to choose favorites. Least favorites, on the other hand....