There IS no definitive Joker OR Batman. They're what the people working on them make them, and some are better than others, and all are valid. And I say this knowing that will include Moldoff, whose Batman I hate.
Morrison himself said this; he was presenting more of a meta-Batman, that was all of them.
>>I can't imagine his breath would be nice.
Morrison described it. He said it was very noxiously chemical, because of his own abuse of the venoms he makes.(which has also given him a tolerance for them)