This discussion may contain spoilers!
Let's be honest, Kenny and Lilly are pretty much the same.
People say that Kenny only cares about his family but Lilly did too. She cared about her father and if we had a Duck and Shawn situation like for example Larry and Mark, Lilly would save Larry and let Mark to die.
People also say that Kenny always forgets that you always supported him but Lilly is not different by taking the RV and leaving both Lee and Clementine in the dust even if you tried to save her dad and always sided with her. No matter how loyal you are to Lilly, she will always take the RV and leave both Lee and Clementine so she is not much better than Kenny.
Instead of saying that "Kenny is better than Lilly" or "Lilly is better than Kenny" we should treat them both as equals. Both of them lost their families and Kenny got his redemption. If Lilly appears in season 2, she might get redemption aswell hopefully.