NONE of the 1/6 Joker figures I've seen (Hot Toys, Medicom, Mattel and Custom) have been 100% replicated from the production shots, stills, and movie scenes anyway.
They're realistic and fun as collectibles sure but I've never seen a single one on here from anybody (myself included) that jumped out and fooled me into thinking it was an actual person, let alone Heath Ledger. Yeah, we all know who it is and nearly all of them look superb but none of them will ever be close with the way sculpts and the hobby in general is evolving.
They're all produced collectible figures, nothing more. Buy one, buy two, buy them all but it'll never be anything more than a scaled down replica of a character from a movie in action figure form. This DX 2.0 will be no different, even if it's "the best". In a few years it'll get stale after awhile and a newer version will be there to take it's place in the eyes of the collecting community.