I thought the original 2-part episode of YJ was very good, and its been downhill since. Unlikeable characters, dull stories, sloppy plotting/writing. I think the show has been a huge disappointment after a promising start. IMO, the only thing it has in common with Batman TAS and JLa/JLU is a slightly similar look.
Teen Titans was hit or miss and I could see how the animation could put people off, but when it was good it was really good.