I think it depends on the version of the character @FreeWill666 since she's changed so much since she was introduced in TAS. The scholar in me contends that she's a clown, and clown characters are never romantically attached. And then the comics fan in me totally disagrees XD
@shannonl5 Lol I love Joker and Harley. They were the original pair. Then someone put Harley and Deadpool together and I loved it. I think that the new 52 Harley definitely should be with Deadshot. The Gods and Monsters Harley is definitely a Joker one. The original Harley is more for Poison Ivy.