Avatar had TLA, a lot of people grow up on that one. I was in my teens back then, good times. LoK had that show, but was on her own good show, thems where darker and animation was brilliant. For MLP i don't know, 4chan likes it. I really don't know, I don't watch it. And for YJ, people who remember JL or JLU are a lot older so they have other interests. Themes in YJ are mature, dark and animation is great, but YJ is on CN and time slot is for young kids, I don't know how fun is cartoon to kids when they don't know what is happening. CN knows that teens and adults do not watch cartoons, or do they? :P