My favorite show is Young Justice (although the second half of the third season was not as good as we were used to IMO).
The storytelling is engaging. The character arc for the main protagonists is outstanding.
It has a cohesive continuity and there are tons of cameos of countless DC characters.
The original characters of the show are typically inspired by other characters already existing in DC-lore, whether it is from comics or animated media.
I found the plot clever, not perfect, but clever!
The villains actually make sense and have an interesting scheme