Tim drake or harley quinn.
who thinks joker will eventually go crazy and kill
Joker wouldn't hesitate to kill anyone at any time, the only person he really has a vested interest in keeping alive is Batman, because he doesn't know who he is without Batman. I don't buy that super sanity crap either, he kills people for fun and that's about as crazy as you can get. Yes he would kill Tim or Harley or literally anyone he felt like and he wouldn't even need to be provoked.
Can't see Drake being a repeat of Todd.
With Harley, although sure, the Joker's has made attempts on her life, I question if he truly wanted her dead? My take is that he may occasionally try to take her life, but with each time she survives, and returns to him, it illustrates that indeed she's the one for him in his mind.
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