I can't vote on here without having seen all the performances. Leto's Joker seems terrific and is enough different from Heath's version that people will be willing to move on, even though Heath will probably always be considered the quintessential Joker.
One thing though. I see Amanda Waller on the list, and from the SS preview she's clearly the evil government type that's willing to lie to everyone. I thought Waller was a good guy in the comics, and like was shown in Green Lantern, is motivated by the death of her husband and child.
Is there an alternate version in the comics where Waller is a villain, or is this new to the DC films?