Yes, even after the 3 hour pilot we still don't know much about the characters - and some of them barely had any screen time;
But this is my arrangement from most liked to least liked:
* Greer (went up even some more this week... this guy rocks)
* Eli (went down a bit this week, due to the planet of the apes incident)
* Wray (little screen time... loved her smile though )
I only included the non guest chars of course.