If there was one Western Cartoon that taught me not to judge a new show so quickly it would probably be
The Batman
When I first saw this show I didn't hate it, it was certainly entertaining, but I disliked how it took Batman and removed all context except super exciting action sequences (It basically suffered from what Spetacular Spiderman did near the end of its run).
However as the series went on the writing improved and while it was still action packed they did focus on the characters, plot, and just the mysteries Batman would have to solve.
If I had to pick my two favorite villains from "The Batman" I would have to go with Hugo Strange and Dracula. Hugo for his inner psychology themed capers and Dracula for just being a flat out great villain in both his style, presence, and strength without being rediculously strong (For reference sake... My two favorite villains from Batman the Animated series would be The Joker and Dr. Freeze.
The series that had the exact opposite of this would be Spetacular Spiderman which started out strong but ended up devolving into constant group battles (Spiderman Versus ALL the villains was a very common theme near the end). It isn't surprising to me that it was cancelled. Mind you I wasn't glad to see it gone, I honestly believe that if it was renewed that it would have went back to its routes.