It might not reach the heights of its well-known earlier installment, mainly due to Heath Ledger’s remarkable and award-winning portrayal, and how firmly the Joker has established himself in our minds as the ultimate comic book antagonist—Lex Luthor is far behind. Nevertheless, this remains a superb achievement and serves as a fitting conclusion to what I consider the best film series of all time. Christopher Nolan is an undeniably talented director, and 'Interstellar' is a good movie too, but I’m unsure if he can ever surpass what he accomplished with these three films. Still, I am eager to see if he does.

Source on TMDB