Every iteration of the Joker is good in his own right, so far. I’m extremely iffy on what I’ve seen of Leto’s Joker right now. The point of the tag was that DC properties are always set up as having phenomenal villains, but the only one that is ever unquestionably good is the Joker. Most every other villain in a DC movie in the last 20 years has either been as bad if not worse than the typical villains in the MCU, while the heroes are generally less human and relatable than their Marvel competition.